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101blockchains.com

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Free website and domain report on 101blockchains.com

Last Updated: 19th November, 2020 Update Now
Overview

Snoop Summary for 101blockchains.com

This is a free and comprehensive report about 101blockchains.com. The domain 101blockchains.com is currently hosted on a server located in United States with the IP address 104.26.9.194, where the local currency is USD and English is the local language. 101blockchains.com has the potential to be earning an estimated $13 USD per day from advertising revenue. If 101blockchains.com was to be sold it would possibly be worth $9,784 USD (based on the daily revenue potential of the website over a 24 month period). 101blockchains.com receives an estimated 4,698 unique visitors every day - a large amount of traffic! This report was last updated 19th November, 2020.

About 101blockchains.com

Site Preview: 101blockchains.com 101blockchains.com
Title: 101 Blockchains - Blockchain Certifications & Online Training
Description: 101 Blockchains is helping professionals and enterprises with the Enterprise Blockchain courses and certifications. Check now and get ahead with us!
Keywords and Tags: banking, blogs, finance, wiki
Related Terms: blockchain explorer, blockchain icos, blockchain nft, enterprise blockchain company, finance certifications, global certifications courses, hr certifications, new cisco certifications, scuba certifications, swisscom blockchain ltd
Fav Icon:
Age: Over 7 years old
Domain Created: 23rd November, 2017
Domain Updated: 17th November, 2019
Domain Expires: 23rd November, 2021
Review

Snoop Score

2/5

Valuation

$9,784 USD
Note: All valuation figures are estimates.

Popularity

Modest
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 127,996
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors: 4,698
Monthly Visitors: 142,992
Yearly Visitors: 1,714,770
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $13 USD
Monthly Revenue: $408 USD
Yearly Revenue: $4,887 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top New Follow Links

Top Ranking Keywords (US)

Domain Analysis

Value Length
Domain: 101blockchains.com 18
Domain Name: 101blockchains 14
Extension (TLD): com 3
Expiry Check:

Page Speed Analysis

Average Load Time:
Load Time Comparison:

PageSpeed Insights

Avg. (All Categories) 70
Performance 91
Accessibility 85
Best Practices 71
SEO 83
Progressive Web App 22
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://101blockchains.com/
Updated: 19th November, 2020

1.95 seconds
First Contentful Paint (FCP)
30%
62%
8%

0.00 seconds
First Input Delay (FID)
99%
1%
0%

Simulate loading on desktop
91

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for 101blockchains.com. This includes details about optimizing page load times which can result in a better user experience.

Metrics

First Contentful Paint — 0.8 s
The time taken for the first image or text on the page to be rendered.
Largest Contentful Paint — 1.0 s
The timing of the largest text or image that is painted.
Time to Interactive — 1.1 s
The time taken for the page to become fully interactive.
Total Blocking Time — 0 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Cumulative Layout Shift — 0.049
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

First CPU Idle — 1.1 s
The time taken for the page's main thread to be quiet enough to handle input.
Max Potential First Input Delay — 50 ms
Users could experience a delay when interacting with the page.
Estimated Input Latency — 20 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive 101blockchains.com as laggy when the latency is higher than 0.05 seconds.
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https://p.adsymptotic.com/d/px/?_pid=16218&_psign=0aa5badf92527f7732e22463d6fa4dbc&coopa=0&gdpr=0&gdpr_consent=&_puuid=8a790b49-3e0b-49a5-bae5-e3b16c9edb6b
2494.4640000031
2554.6160000013
819
0
302
https://p.adsymptotic.com/d/px/?_pid=16218&_psign=0aa5badf92527f7732e22463d6fa4dbc&coopa=0&gdpr=0&gdpr_consent=&_puuid=8a790b49-3e0b-49a5-bae5-e3b16c9edb6b&_expected_cookie=3c6f40dd2cdf0133913d6b886d58a610
2554.9129999999
2585.0060000012
737
43
200
image/gif
Image
https://fonts.googleapis.com/css?family=Roboto:700,400,500%7CMontserrat:500,400
2635.0250000032
2650.0640000013
1577
9408
200
text/css
Stylesheet
https://fonts.gstatic.com/s/roboto/v20/KFOlCnqEu92Fr1MmWUlfBBc4AMP6lQ.woff2
2754.3300000034
2759.5320000037
11589
11020
200
font/woff2
Font
https://fonts.gstatic.com/s/roboto/v20/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
2754.7120000017
2758.0559999988
11585
11016
200
font/woff2
Font
https://fonts.gstatic.com/s/roboto/v20/KFOlCnqEu92Fr1MmEU9fBBc4AMP6lQ.woff2
2755.2619999988
2758.762999998
11625
11056
200
font/woff2
Font
https://fonts.gstatic.com/s/montserrat/v15/JTURjIg1_i6t8kCHKm45_ZpC3gnD_vx3rCs.woff2
2755.7740000047
2759.9709999995
14208
13640
200
font/woff2
Font
https://fonts.gstatic.com/s/montserrat/v15/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2
2756.4209999982
2760.4960000026
14277
13708
200
font/woff2
Font
https://www.facebook.com/tr/
2858.8759999984
2893.7789999982
0
0
-1
Other
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/popup.html?templateId=5613c9cde69ddc09340c6beb&businessunitId=5e2d5a4282a3f1000145377b
3350.4529999991
3366.6650000014
2486
5434
200
text/html
Document
https://polyfills.trustpilot.com/v2/polyfill.min.js?features=Promise%2CObject.assign%2CString.prototype.includes
3381.8360000005
3463.8590000031
815
72
200
text/javascript
Script
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/popup.js
3382.1519999983
3400.6799999988
42701
145423
200
application/x-javascript
Script
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
1009.803
8.771
1037.502
61.448
1103.813
14.877
1122.377
6.469
1215.922
10.857
1226.798
81.528
1318.03
17.252
1344.741
37.741
1382.541
57.905
1440.777
32.007
1483.071
23
1508.415
8.364
1518.93
28.707
1550.267
19.232
1584.7
6.876
1591.591
17.01
1609.46
22.933
1632.485
7.98
1640.537
6.63
1647.186
8.506
1655.813
16.323
1672.18
94.963
1771.069
20.421
1794.534
13.506
1808.787
7.612
1818.002
5.507
1830.783
13.283
1848.113
12.055
1860.19
10.47
1871.687
41.327
1913.033
7.274
1924.466
5.317
1933.199
7.353
1941.818
9.607
1953.958
20.003
1980.267
7.302
1991.269
21.025
2017.459
25.301
2042.785
39.075
2081.896
18.099
2100.14
20.516
2130.718
35.83
2167.139
11.633
2179.85
10.485
2190.381
8.534
2199.334
28.398
2229.827
7.236
2238.108
11.214
2249.345
5.394
2258.361
7.572
2269.6
24.251
2294.162
6.382
2304.435
6.245
2310.91
34.116
2345.05
8.205
2365.204
16.401
2382.305
14.741
2398.653
15.023
2422.491
14.339
2494.975
11.072
2669.58
89.17
2767.768
22.777
2790.58
12.074
2814.363
16.325
2831.881
22.947
2856.268
14.08
2870.372
23.217
2894.478
16.093
2910.601
16.591
3335.007
42.503
3394.991
6.825
3403.621
7.97
3500.23
15.972
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Opportunities

Properly size images — Potential savings of 68 KiB
Images can slow down the page's load time. 101blockchains.com should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://101blockchains.com/wp-content/uploads/2020/06/Students-learning-Blockchain.png
103887
63103
https://101blockchains.com/wp-content/uploads/2020/09/webinar-Approaches-to-Overcome-Scalability-Confidentiality-and-Data-Privacy-Issues-For-Enterprise-Blockchains-343x215.png
53926
6892
Defer offscreen images
Time to Interactive can be slowed down by resources on the page. 101blockchains.com should consider lazy-loading offscreen and hidden images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. 101blockchains.com should consider minifying CSS files.
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. 101blockchains.com should consider minifying JS files.
Remove unused CSS — Potential savings of 181 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. 101blockchains.com should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
.the_champ_horizontal_sharing .theChampSharing{color:#fff;border-width:0;border-style:solid; ... } ...
130199
126082
https://101blockchains.com/wp-includes/css/dashicons.min.css
36031
36031
/*! * Bootstrap v3.3.7 (http://getbootstrap.com) * Copyright 2011-2016 Twitter, Inc. * Licensed u...
23729
23242
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Avoid multiple page redirects — Potential savings of 190 ms
Redirects can cause additional delays before the page can begin loading. 101blockchains.com should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://101blockchains.com/
190
https://101blockchains.com/
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. 101blockchains.com should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 21 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://connect.facebook.net/signals/config/1319120831554152?v=2.9.28&r=stable
12217
https://a.omappapi.com/app/js/api.min.js
8724
https://widget.trustpilot.com/bootstrap/v5/tp.widget.bootstrap.min.js
77
https://101blockchains.com/wp-content/cache/autoptimize/js/autoptimize_e0d609f9ae2cef99685306b94e73c9e6.js
64
https://a.mailmunch.co/app/v1/site.js
59
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/main.js
54
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/popup.js
54
https://connect.facebook.net/en_US/fbevents.js
44

Diagnostics

Avoids enormous network payloads — Total size was 1,821 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://a.omappapi.com/users/10a13fbf9dec/images/545da39981ae1578504082-Enterprise-Blockchain-professional-Certification.PNG
210569
https://101blockchains.com/wp-content/cache/autoptimize/js/autoptimize_e0d609f9ae2cef99685306b94e73c9e6.js
198051
https://a.omappapi.com/users/10a13fbf9dec/images/8ce7f3a0a96c1577973666-AVIV_LICHTIGSTEIN.jpg
185968
https://101blockchains.com/
179471
https://101blockchains.com/wp-content/uploads/2020/06/Students-learning-Blockchain.png
104870
https://101blockchains.com/wp-content/themes/smart-mag/css/fontawesome/fonts/fontawesome-webfont.woff2?v=4.7.0
78039
https://connect.facebook.net/signals/config/1319120831554152?v=2.9.28&r=stable
71928
https://a.omappapi.com/app/js/api.min.js
64232
https://connect.facebook.net/en_US/sdk.js?hash=b59a440054ddfe46a0072b9b5ea8f34e&ua=modern_es6
61043
https://101blockchains.com/wp-content/uploads/2020/09/webinar-Approaches-to-Overcome-Scalability-Confidentiality-and-Data-Privacy-Issues-For-Enterprise-Blockchains-343x215.png
54907
Avoid chaining critical requests — 9 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. 101blockchains.com should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 0.6 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://101blockchains.com/
406.9
5.385
1.747
https://a.omappapi.com/app/js/api.min.js
308.446
142.268
24.383
https://ajax.cloudflare.com/cdn-cgi/scripts/7089c43e/cloudflare-static/rocket-loader.min.js
211.647
172.806
7.228
https://101blockchains.com/wp-content/cache/autoptimize/js/autoptimize_e0d609f9ae2cef99685306b94e73c9e6.js
185.798
69.355
14.689
Unattributable
135.73
1.477
0.161
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/main.js
82.334
62.671
3.112
https://connect.facebook.net/signals/config/1319120831554152?v=2.9.28&r=stable
57.308
38.849
3.997
https://www.google-analytics.com/analytics.js
52.124
38.903
7.179
Minimizes main-thread work — 1.7 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
751.87799999999
Style & Layout
372.145
Other
301.194
Rendering
103.491
Parse HTML & CSS
102.353
Script Parsing & Compilation
100.663
Garbage Collection
14.532
Keep request counts low and transfer sizes small — 83 requests • 1,821 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
83
1865031
Script
26
768675
Image
18
610298
Font
11
192687
Document
4
184954
Other
19
64129
Stylesheet
5
44288
Media
0
0
Third-party
57
1069098
Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
SHOW DETAILS
160016
0
SHOW DETAILS
118377
0
SHOW DETAILS
102760
0
SHOW DETAILS
64861
0
SHOW DETAILS
58745
0
SHOW DETAILS
34219
0
SHOW DETAILS
20686
0
SHOW DETAILS
16993
0
SHOW DETAILS
5297
0
SHOW DETAILS
5005
0
SHOW DETAILS
2112
0
SHOW DETAILS
1556
0
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
101 Blockchains is the world’s leading online independent research-based networ…
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
We use cookies to ensure that we give you the best experience on our website, b…
0.013287727285994
101 Blockchains is the world’s leading online independent research-based networ…
0.0095242674753053
SOME OF OUR STUDENTS COME FROM:
0.0077640002350378
SHAPING THE FUTURE OF ENTERPRISE BLOCKCHAINS
0.0042706539579032
Students learning Blockchain
0.0038524589207016
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 2 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://101blockchains.com/
190
61
https://101blockchains.com/
576
58
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Avoids large JavaScript libraries with smaller alternatives — 0 large libraries found
It is recommended to work with smaller JavaScript libraries to reduce your bundle size and avoid poor performance.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

Speed Index — 2.2 s
The time taken for the page contents to be visibly populated.

Other

First Meaningful Paint — 1.1 s
The time taken for the primary content of the page to be rendered.

Opportunities

Eliminate render-blocking resources — Potential savings of 350 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. 101blockchains.com should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://101blockchains.com/wp-content/cache/autoptimize/css/autoptimize_single_c3ec849e5d9a473711ede8f92fd4673d.css
1471
70
https://101blockchains.com/wp-includes/css/dashicons.min.css
36031
230
https://101blockchains.com/wp-content/cache/autoptimize/css/autoptimize_single_4616b72aa6e32cb1b5d63d58e15e89f7.css
2211
150
Remove unused JavaScript — Potential savings of 406 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://101blockchains.com/wp-content/cache/autoptimize/js/autoptimize_e0d609f9ae2cef99685306b94e73c9e6.js
198051
160034
https://connect.facebook.net/signals/config/1319120831554152?v=2.9.28&r=stable
71928
52828
https://connect.facebook.net/en_US/sdk.js?hash=b59a440054ddfe46a0072b9b5ea8f34e&ua=modern_es6
61043
40428
https://a.omappapi.com/app/js/api.min.js
64232
40185
https://www.googletagmanager.com/gtag/js?id=AW-744588617&l=dataLayer&cx=c
39475
31771
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/popup.js
42701
25717
https://www.googletagmanager.com/gtag/js?id=AW-744588617
39456
22156
https://www.googletagmanager.com/gtag/js?id=UA-119941325-1
39446
21491
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/main.js
45115
21007
Serve images in next-gen formats — Potential savings of 354 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://a.omappapi.com/users/10a13fbf9dec/images/545da39981ae1578504082-Enterprise-Blockchain-professional-Certification.PNG
209816
176388
https://101blockchains.com/wp-content/uploads/2020/06/Students-learning-Blockchain.png
103887
77177
https://a.omappapi.com/users/10a13fbf9dec/images/8ce7f3a0a96c1577973666-AVIV_LICHTIGSTEIN.jpg
185243
69933
https://101blockchains.com/wp-content/uploads/2020/09/webinar-Approaches-to-Overcome-Scalability-Confidentiality-and-Data-Privacy-Issues-For-Enterprise-Blockchains-343x215.png
53926
39240

Diagnostics

Avoid an excessive DOM size — 887 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
887
Maximum DOM Depth
SHOW DETAILS
17
Maximum Child Elements
SHOW DETAILS
38

Opportunities

Reduce initial server response time — Root document took 890 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://101blockchains.com/
886.103

Diagnostics

Serve static assets with an efficient cache policy — 16 resources found
101blockchains.com can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://p.adsymptotic.com/d/px/?_pid=16218&_psign=0aa5badf92527f7732e22463d6fa4dbc&coopa=0&gdpr=0&gdpr_consent=&_puuid=8a790b49-3e0b-49a5-bae5-e3b16c9edb6b&_expected_cookie=3c6f40dd2cdf0133913d6b886d58a610
0
737
https://connect.facebook.net/signals/config/1319120831554152?v=2.9.28&r=stable
1200000
71928
https://connect.facebook.net/en_US/fbevents.js
1200000
23902
https://connect.facebook.net/en_US/sdk.js
1200000
2680
https://www.google-analytics.com/analytics.js
7200000
19452
https://snap.licdn.com/li.lms-analytics/insight.beta.min.js
27283000
2113
https://snap.licdn.com/li.lms-analytics/insight.min.js
39434000
761
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/main.js
86400000
45115
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/popup.js
86400000
42701
https://widget.trustpilot.com/bootstrap/v5/tp.widget.bootstrap.min.js
86400000
7274
https://a.mailmunch.co/app/v1/site.js
172800000
8748
https://ajax.cloudflare.com/cdn-cgi/scripts/7089c43e/cloudflare-static/rocket-loader.min.js
172800000
5005
https://a.mailmunch.co/app/v1/styles.css
172800000
2998
https://101blockchains.com/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js
172800000
1559
https://a.mailmunch.co/app/v1/sidebar.js
172800000
1524
https://polyfills.trustpilot.com/v2/polyfill.min.js?features=Promise%2CObject.assign%2CString.prototype.includes
604800000
815
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://101blockchains.com/wp-content/uploads/sgf-css/mem5YaGs126MiZpBA-UNirkOUuhpKKSTjw.woff2
103.65099999763
https://101blockchains.com/wp-content/themes/smart-mag/css/fontawesome/fonts/fontawesome-webfont.woff2?v=4.7.0
135.52599999821
https://101blockchains.com/wp-content/uploads/sgf-css/mem8YaGs126MiZpBA-UFVZ0bf8pkAg.woff2
119.7170000014
https://101blockchains.com/wp-content/uploads/sgf-css/mem5YaGs126MiZpBA-UN7rgOUuhpKKSTjw.woff2
38.085000000137
https://101blockchains.com/wp-content/uploads/sgf-css/BngMUXZYTXPIvIBgJJSb6ufN5qWr4xCC.woff2
40.659999998752
https://101blockchains.com/wp-content/uploads/sgf-css/mem6YaGs126MiZpBA-UFUK0Zdc1GAK6b.woff2
83.251000003656
https://fonts.gstatic.com/s/roboto/v20/KFOlCnqEu92Fr1MmWUlfBBc4AMP6lQ.woff2
5.2020000002813
https://fonts.gstatic.com/s/roboto/v20/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
3.3439999970142
https://fonts.gstatic.com/s/roboto/v20/KFOlCnqEu92Fr1MmEU9fBBc4AMP6lQ.woff2
3.5009999992326
https://fonts.gstatic.com/s/montserrat/v15/JTURjIg1_i6t8kCHKm45_ZpC3gnD_vx3rCs.woff2
4.1969999947469
https://fonts.gstatic.com/s/montserrat/v15/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2
4.0750000043772
85

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of 101blockchains.com. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Presentational `<table>` elements avoid using `<th>`, `<caption>` or the `[summary]` attribute.
It is advised to not include data elements in tables which are used for layout purposes, as it may create confusion for screen reader and other assistive technology users.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
101blockchains.com may provide assistance to deaf or hearing-impaired users with captions on videos.
`<video>` elements contain a `<track>` element with `[kind="description"]`
101blockchains.com may provide relevant information that dialogue cannot, by using audio descriptions.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements
FREE COURSE
ONLINE COURSES
BLOCKCHAIN WEBINARS
BLOCKCHAIN WEBINARS
BLOCKCHAIN WEBINARS
START FREE COURSE
Certified Enterprise Blockchain Professional
FEATURED
FEATURED
FEATURED
FEATURED
FEATURED
FEATURED

Navigation

Heading elements are not in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
Failing Elements
ONLINE COURSES
Top enterprise blockchain experts from our community share their strategic and …
CERTIFICATION PROGRAM 
Read the latest research on blockchain technology and explore our top rated gui…

Names and labels

Image elements do not have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Failing Elements
img
Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
71

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that 101blockchains.com should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Links to cross-origin destinations are safe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
Bootstrap
3.4.1
jQuery
3.5.1
jQuery UI
1.11.4
Backbone
1.4.0
Underscore
1.8.3
WebFont Loader
FlexSlider
WordPress
5.5.3
core-js
3.0.0: pure
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://101blockchains.com/
Includes front-end JavaScript libraries with known security vulnerabilities — 1 vulnerability detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
SHOW DETAILS
1
High

Audits

Registers an `unload` listener
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
URL
SHOW DETAILS
Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
URL Description
https://www.facebook.com/tr/
Failed to load resource: net::ERR_BLOCKED_BY_CLIENT.Inspector
https://101blockchains.com/
Failed to set referrer policy: The value '' is not one of 'no-referrer', 'no-referrer-when-downgrade', 'origin', 'origin-when-cross-origin', 'same-origin', 'strict-origin', 'strict-origin-when-cross-origin', or 'unsafe-url'. The referrer policy has been left unchanged.
https://101blockchains.com/wp-content/plugins/jquery-manager/assets/js/jquery-3.5.1.min.js
TypeError: Cannot read property 'msie' of undefined at Object.init (https://101blockchains.com/wp-content/cache/autoptimize/js/autoptimize_e0d609f9ae2cef99685306b94e73c9e6.js:160:569) at HTMLDocument.<anonymous> (https://101blockchains.com/wp-content/cache/autoptimize/js/autoptimize_e0d609f9ae2cef99685306b94e73c9e6.js:222:585) at e (https://101blockchains.com/wp-content/plugins/jquery-manager/assets/js/jquery-3.5.1.min.js:2:30005) at t (https://101blockchains.com/wp-content/plugins/jquery-manager/assets/js/jquery-3.5.1.min.js:2:30307)
Missing source maps for large first-party JavaScript
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://101blockchains.com/wp-content/cache/autoptimize/js/autoptimize_e0d609f9ae2cef99685306b94e73c9e6.js
https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js
https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.map
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/popup.js
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/popup.js.map
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/main.js
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83

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for 101blockchains.com. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of 101blockchains.com on mobile screens.
Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Content Best Practices

Links do not have descriptive text — 1 link found
Make use of descriptive link text to assist search engines in understanding the content.
Image elements do not have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Failing Elements
img

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
22

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of 101blockchains.com. This includes details about web app manifests.

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of 101blockchains.com on mobile screens.
Contains some content when JavaScript is not available
Apps should display alternative content for when JavaScript is disabled.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Fast and reliable

Page load is not fast enough on mobile networks — Interactive on simulated mobile network at 13.4 s
Ensure that the page loads fast enough over a cellular network, to ensure good mobile user experience.
Current page does not respond with a 200 when offline
In order for Progressive Web Apps to be made available offline, ensure that the app is using a service worker.
`start_url` does not respond with a 200 when offline
Consider using a service worker for Progressive Web Apps to ensure greater reliability for the user, in the case of poor network conditions.

Installable

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://101blockchains.com/
Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Web app manifest does not meet the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
View Data

PWA Optimized

Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 67
Performance 52
Accessibility 95
Best Practices 71
SEO 91
Progressive Web App 25
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://101blockchains.com
Updated: 19th November, 2020

2.62 seconds
First Contentful Paint (FCP)
21%
59%
20%

0.03 seconds
First Input Delay (FID)
91%
7%
2%

Simulate loading on mobile
52

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for 101blockchains.com. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Cumulative Layout Shift — 0.006
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

Estimated Input Latency — 40 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive 101blockchains.com as laggy when the latency is higher than 0.05 seconds.
Network Requests
Below is a list of network requests that were made during page load.
URL Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://101blockchains.com/
0
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301
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Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
985.541
8.175
1012.293
47.488
1065.521
7.143
1072.709
12.552
1114.398
66.966
1187.293
9.845
1211.405
54.986
1266.818
14.412
1281.275
17.496
1300.75
10.417
1317.15
20.984
1360.868
13.285
1374.687
19.642
1394.35
7.103
1401.485
6.994
1408.498
7.04
1417.476
7.681
1426.142
16.596
1442.758
8.928
1452.314
5.474
1459.54
5.919
1469.933
13.341
1485.245
76.58
1566.264
11.95
1586.65
6.701
1593.365
6.439
1600.555
30.341
1647.341
10.824
1658.534
6.277
1665.58
5.077
1674.786
20.602
1695.412
28.572
1723.998
6.022
1733.852
25.922
1763.104
13.517
1779.734
18.318
1798.178
18.635
1825.154
15.187
1850.425
21.055
1878.692
6.366
1902.282
9.718
1914.538
8.949
1925.724
8.982
2104.324
25.731
2156.142
5.867
2196.806
17.272
2259.262
6.069
2301.5
47.116
2356.482
23.362
2385.768
9.802
2395.591
6.625
2402.232
5.846
2408.647
10.335
2419.522
5.899
2425.525
5.865
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Opportunities

Properly size images
Images can slow down the page's load time. 101blockchains.com should consider serving more appropriate-sized images.
Defer offscreen images — Potential savings of 3 KiB
Time to Interactive can be slowed down by resources on the page. 101blockchains.com should consider lazy-loading offscreen and hidden images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://101blockchains.com/wp-content/uploads/2018/12/101_blockchains_SN.png
2792
2792
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. 101blockchains.com should consider minifying CSS files.
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. 101blockchains.com should consider minifying JS files.
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Avoid multiple page redirects — Potential savings of 630 ms
Redirects can cause additional delays before the page can begin loading. 101blockchains.com should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://101blockchains.com/
630
https://101blockchains.com/
0
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 21 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://connect.facebook.net/signals/config/1319120831554152?v=2.9.28&r=stable
12145
https://a.omappapi.com/app/js/api.min.js
8724
https://widget.trustpilot.com/bootstrap/v5/tp.widget.bootstrap.min.js
77
https://101blockchains.com/wp-content/cache/autoptimize/js/autoptimize_e0d609f9ae2cef99685306b94e73c9e6.js
64
https://a.mailmunch.co/app/v1/site.js
59
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/main.js
54
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/popup.js
54
https://connect.facebook.net/en_US/fbevents.js
44

Diagnostics

Avoids enormous network payloads — Total size was 1,624 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://a.omappapi.com/users/10a13fbf9dec/images/545da39981ae1578504082-Enterprise-Blockchain-professional-Certification.PNG
210569
https://101blockchains.com/wp-content/cache/autoptimize/js/autoptimize_e0d609f9ae2cef99685306b94e73c9e6.js
198039
https://a.omappapi.com/users/10a13fbf9dec/images/8ce7f3a0a96c1577973666-AVIV_LICHTIGSTEIN.jpg
185968
https://101blockchains.com/
178795
https://101blockchains.com/wp-content/themes/smart-mag/css/fontawesome/fonts/fontawesome-webfont.woff2?v=4.7.0
78041
https://connect.facebook.net/signals/config/1319120831554152?v=2.9.28&r=stable
71505
https://a.omappapi.com/app/js/api.min.js
64232
https://connect.facebook.net/en_US/sdk.js?hash=b59a440054ddfe46a0072b9b5ea8f34e&ua=modern_es6
61043
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/main.js
45115
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/popup.js
42701
Avoids an excessive DOM size — 632 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
632
Maximum DOM Depth
SHOW DETAILS
15
Maximum Child Elements
SHOW DETAILS
38
Avoid chaining critical requests — 9 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. 101blockchains.com should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Keep request counts low and transfer sizes small — 75 requests • 1,624 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
75
1663427
Script
26
768121
Image
10
409690
Font
11
192684
Document
4
184278
Other
19
64115
Stylesheet
5
44539
Media
0
0
Third-party
57
1068803
Minimize third-party usage — Third-party code blocked the main thread for 120 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
SHOW DETAILS
159593
36.008
SHOW DETAILS
102762
31.124
SHOW DETAILS
5003
26.944
SHOW DETAILS
118377
12.736
SHOW DETAILS
20686
9.468
SHOW DETAILS
34219
4.396
SHOW DETAILS
65119
0
SHOW DETAILS
58737
0
SHOW DETAILS
16868
0
SHOW DETAILS
5297
0
SHOW DETAILS
2112
0
SHOW DETAILS
1556
0
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
101 Blockchains is the world’s leading online independent research-based networ…
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
We use cookies to ensure that we give you the best experience on our website, b…
0.0037955729166667
101 Blockchains is the world’s leading online independent research-based networ…
0.0014724392361111
SHAPING THE FUTURE OF ENTERPRISE BLOCKCHAINS
0.0010114203559028
 
6.1117379776554E-5
::before
5.367359634223E-5
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 20 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://101blockchains.com/
631
190
https://101blockchains.com/wp-content/cache/autoptimize/js/autoptimize_e0d609f9ae2cef99685306b94e73c9e6.js
13853
153
https://101blockchains.com/
2060
134
https://a.omappapi.com/app/js/api.min.js
12692
114
https://101blockchains.com/
2194
110
https://connect.facebook.net/signals/config/1319120831554152?v=2.9.28&r=stable
8400
104
https://a.omappapi.com/app/js/api.min.js
13635
94
https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js
5670
84
https://connect.facebook.net/en_US/sdk.js?hash=b59a440054ddfe46a0072b9b5ea8f34e&ua=modern_es6
14400
84
https://a.omappapi.com/app/js/api.min.js
12610
82
https://101blockchains.com/wp-content/plugins/jquery-manager/assets/js/jquery-migrate-3.3.0.min.js
12806
79
https://a.omappapi.com/app/js/api.min.js
13545
75
https://a.omappapi.com/app/js/api.min.js
13472
73
https://www.google-analytics.com/analytics.js
3390
70
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/popup.js
8850
69
https://www.googletagmanager.com/gtag/js?id=UA-119941325-1
6026
66
https://ajax.cloudflare.com/cdn-cgi/scripts/7089c43e/cloudflare-static/rocket-loader.min.js
14032
61
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/main.js
6780
61
https://ajax.cloudflare.com/cdn-cgi/scripts/7089c43e/cloudflare-static/rocket-loader.min.js
3090
58
https://101blockchains.com/wp-content/plugins/jquery-manager/assets/js/jquery-3.5.1.min.js
13800
53
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Avoids large JavaScript libraries with smaller alternatives — 0 large libraries found
It is recommended to work with smaller JavaScript libraries to reduce your bundle size and avoid poor performance.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

First Contentful Paint — 3.5 s
The time taken for the first image or text on the page to be rendered.
Total Blocking Time — 330 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Other

Max Potential First Input Delay — 150 ms
Users could experience a delay when interacting with the page.

Opportunities

Remove unused CSS — Potential savings of 187 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. 101blockchains.com should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
.the_champ_horizontal_sharing .theChampSharing{color:#fff;border-width:0;border-style:solid; ... } ...
136614
131446
https://101blockchains.com/wp-includes/css/dashicons.min.css
36031
36031
/*! * Bootstrap v3.3.7 (http://getbootstrap.com) * Copyright 2011-2016 Twitter, Inc. * Licensed u...
24898
24363
Preload key requests — Potential savings of 330 ms
Key requests can be preloaded by using '<link rel=preload>'. 101blockchains.com should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
URL Potential Savings (Ms)
https://101blockchains.com/wp-content/uploads/sgf-css/mem8YaGs126MiZpBA-UFVZ0bf8pkAg.woff2
330
https://101blockchains.com/wp-content/uploads/sgf-css/BngMUXZYTXPIvIBgJJSb6ufN5qWr4xCC.woff2
300
https://101blockchains.com/wp-content/uploads/sgf-css/mem6YaGs126MiZpBA-UFUK0Zdc1GAK6b.woff2
150

Diagnostics

Reduce JavaScript execution time — 2.1 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://101blockchains.com/
1175.204
19.512
6.584
https://a.omappapi.com/app/js/api.min.js
686.264
349.596
71.656
https://ajax.cloudflare.com/cdn-cgi/scripts/7089c43e/cloudflare-static/rocket-loader.min.js
566.864
430.32
23.94
https://101blockchains.com/wp-content/cache/autoptimize/js/autoptimize_e0d609f9ae2cef99685306b94e73c9e6.js
427.96
184.956
55.74
Unattributable
386.132
4.328
0.756
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/main.js
231.14
177.908
10.908
https://connect.facebook.net/en_US/sdk.js?hash=b59a440054ddfe46a0072b9b5ea8f34e&ua=modern_es6
138.584
109.596
22.652
https://www.googletagmanager.com/gtag/js?id=UA-119941325-1
136.492
121.292
10.072
https://connect.facebook.net/signals/config/1319120831554152?v=2.9.28&r=stable
127.912
107.06
14.756
https://www.google-analytics.com/analytics.js
107.748
75.488
19.704
https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js
87.252
72.748
5.688
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/popup.js
84.072
67.016
8.672
https://a.mailmunch.co/app/v1/site.js
82.636
69.72
5.436
https://connect.facebook.net/en_US/fbevents.js
53.364
45.212
5.916
https://101blockchains.com/wp-content/plugins/jquery-manager/assets/js/jquery-3.5.1.min.js
51.372
41.288
5.968

Metrics

Speed Index — 7.5 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 4.3 s
The timing of the largest text or image that is painted.
Time to Interactive — 13.2 s
The time taken for the page to become fully interactive.

Other

First CPU Idle — 11.8 s
The time taken for the page's main thread to be quiet enough to handle input.
First Meaningful Paint — 4.2 s
The time taken for the primary content of the page to be rendered.
First Contentful Paint (3G) — 7140 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.

Opportunities

Eliminate render-blocking resources — Potential savings of 900 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. 101blockchains.com should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://101blockchains.com/wp-content/cache/autoptimize/css/autoptimize_single_c3ec849e5d9a473711ede8f92fd4673d.css
1471
180
https://101blockchains.com/wp-includes/css/dashicons.min.css
36031
1080
https://101blockchains.com/wp-content/cache/autoptimize/css/autoptimize_single_4616b72aa6e32cb1b5d63d58e15e89f7.css
2201
480
Remove unused JavaScript — Potential savings of 408 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://101blockchains.com/wp-content/cache/autoptimize/js/autoptimize_e0d609f9ae2cef99685306b94e73c9e6.js
198039
162180
https://connect.facebook.net/signals/config/1319120831554152?v=2.9.28&r=stable
71505
52517
https://connect.facebook.net/en_US/sdk.js?hash=b59a440054ddfe46a0072b9b5ea8f34e&ua=modern_es6
61043
40464
https://a.omappapi.com/app/js/api.min.js
64232
40220
https://www.googletagmanager.com/gtag/js?id=AW-744588617&l=dataLayer&cx=c
39475
31771
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/popup.js
42701
25717
https://www.googletagmanager.com/gtag/js?id=AW-744588617
39456
22156
https://www.googletagmanager.com/gtag/js?id=UA-119941325-1
39446
21491
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/main.js
45115
21007
Serve images in next-gen formats — Potential savings of 241 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://a.omappapi.com/users/10a13fbf9dec/images/545da39981ae1578504082-Enterprise-Blockchain-professional-Certification.PNG
209816
176388
https://a.omappapi.com/users/10a13fbf9dec/images/8ce7f3a0a96c1577973666-AVIV_LICHTIGSTEIN.jpg
185243
69933
Reduce initial server response time — Root document took 920 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://101blockchains.com/
918.225

Diagnostics

Serve static assets with an efficient cache policy — 16 resources found
101blockchains.com can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://p.adsymptotic.com/d/px/?_pid=16218&_psign=0aa5badf92527f7732e22463d6fa4dbc&coopa=0&gdpr=0&gdpr_consent=&_puuid=314eb5d5-03b2-4bfc-bb06-38bc59f5dad3&_expected_cookie=a651d1dbcb7fa7e05096d13f5896c62f
0
737
https://connect.facebook.net/signals/config/1319120831554152?v=2.9.28&r=stable
1200000
71505
https://connect.facebook.net/en_US/fbevents.js
1200000
23902
https://connect.facebook.net/en_US/sdk.js
1200000
2680
https://www.google-analytics.com/analytics.js
7200000
19452
https://snap.licdn.com/li.lms-analytics/insight.beta.min.js
27551000
2113
https://snap.licdn.com/li.lms-analytics/insight.min.js
39442000
761
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/main.js
86400000
45115
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/popup.js
86400000
42701
https://widget.trustpilot.com/bootstrap/v5/tp.widget.bootstrap.min.js
86400000
7274
https://a.mailmunch.co/app/v1/site.js
172800000
8748
https://ajax.cloudflare.com/cdn-cgi/scripts/7089c43e/cloudflare-static/rocket-loader.min.js
172800000
5003
https://a.mailmunch.co/app/v1/styles.css
172800000
2998
https://101blockchains.com/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js
172800000
1561
https://a.mailmunch.co/app/v1/sidebar.js
172800000
1524
https://polyfills.trustpilot.com/v2/polyfill.min.js?features=Promise%2CObject.assign%2CString.prototype.includes
604800000
815
Minimize main-thread work — 4.6 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
1997.196
Other
893.116
Style & Layout
890.032
Script Parsing & Compilation
321.48
Parse HTML & CSS
307.64
Rendering
187.556
Garbage Collection
35.724
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://101blockchains.com/wp-content/themes/smart-mag/css/fontawesome/fonts/fontawesome-webfont.woff2?v=4.7.0
23.325999965891
https://101blockchains.com/wp-content/uploads/sgf-css/mem5YaGs126MiZpBA-UN7rgOUuhpKKSTjw.woff2
19.155999994837
https://101blockchains.com/wp-content/uploads/sgf-css/mem8YaGs126MiZpBA-UFVZ0bf8pkAg.woff2
35.717999911867
https://101blockchains.com/wp-content/uploads/sgf-css/BngMUXZYTXPIvIBgJJSb6ufN5qWr4xCC.woff2
42.803999967873
https://101blockchains.com/wp-content/uploads/sgf-css/mem6YaGs126MiZpBA-UFUK0Zdc1GAK6b.woff2
82.470000023022
https://101blockchains.com/wp-content/uploads/sgf-css/mem5YaGs126MiZpBA-UNirkOUuhpKKSTjw.woff2
43.868999928236
https://fonts.gstatic.com/s/roboto/v20/KFOlCnqEu92Fr1MmWUlfBBc4AMP6lQ.woff2
2.9670000076294
https://fonts.gstatic.com/s/roboto/v20/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
2.7520000003278
https://fonts.gstatic.com/s/roboto/v20/KFOlCnqEu92Fr1MmEU9fBBc4AMP6lQ.woff2
2.4860000703484
https://fonts.gstatic.com/s/montserrat/v15/JTURjIg1_i6t8kCHKm45_ZpC3gnD_vx3rCs.woff2
2.9680000152439
https://fonts.gstatic.com/s/montserrat/v15/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2
2.4369999300689
95

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of 101blockchains.com. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Presentational `<table>` elements avoid using `<th>`, `<caption>` or the `[summary]` attribute.
It is advised to not include data elements in tables which are used for layout purposes, as it may create confusion for screen reader and other assistive technology users.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
101blockchains.com may provide assistance to deaf or hearing-impaired users with captions on videos.
`<video>` elements contain a `<track>` element with `[kind="description"]`
101blockchains.com may provide relevant information that dialogue cannot, by using audio descriptions.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements
ONLINE COURSES
BLOCKCHAIN WEBINARS
BLOCKCHAIN WEBINARS
BLOCKCHAIN WEBINARS
START FREE COURSE
Certified Enterprise Blockchain Professional
FEATURED
FEATURED
FEATURED
FEATURED
FEATURED
FEATURED

Navigation

Heading elements are not in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
Failing Elements
ONLINE COURSES
Top enterprise blockchain experts from our community share their strategic and …
CERTIFICATION PROGRAM 
Read the latest research on blockchain technology and explore our top rated gui…

Names and labels

Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
71

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that 101blockchains.com should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Links to cross-origin destinations are safe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
Bootstrap
3.4.1
jQuery
3.5.1
jQuery UI
1.11.4
Backbone
1.4.0
Underscore
1.8.3
WebFont Loader
FlexSlider
WordPress
5.5.3
core-js
3.0.0: pure
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://101blockchains.com/
Includes front-end JavaScript libraries with known security vulnerabilities — 1 vulnerability detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
SHOW DETAILS
1
High

Audits

Registers an `unload` listener
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
URL
SHOW DETAILS
Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
URL Description
https://www.facebook.com/tr/
Failed to load resource: net::ERR_BLOCKED_BY_CLIENT.Inspector
https://101blockchains.com/
Failed to set referrer policy: The value '' is not one of 'no-referrer', 'no-referrer-when-downgrade', 'origin', 'origin-when-cross-origin', 'same-origin', 'strict-origin', 'strict-origin-when-cross-origin', or 'unsafe-url'. The referrer policy has been left unchanged.
https://101blockchains.com/wp-content/plugins/jquery-manager/assets/js/jquery-3.5.1.min.js
TypeError: Cannot read property 'msie' of undefined at Object.init (https://101blockchains.com/wp-content/cache/autoptimize/js/autoptimize_e0d609f9ae2cef99685306b94e73c9e6.js:160:569) at HTMLDocument.<anonymous> (https://101blockchains.com/wp-content/cache/autoptimize/js/autoptimize_e0d609f9ae2cef99685306b94e73c9e6.js:222:585) at e (https://101blockchains.com/wp-content/plugins/jquery-manager/assets/js/jquery-3.5.1.min.js:2:30005) at t (https://101blockchains.com/wp-content/plugins/jquery-manager/assets/js/jquery-3.5.1.min.js:2:30307)
Missing source maps for large first-party JavaScript
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://101blockchains.com/wp-content/cache/autoptimize/js/autoptimize_e0d609f9ae2cef99685306b94e73c9e6.js
https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js
https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.map
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/popup.js
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/popup.js.map
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/main.js
https://widget.trustpilot.com/trustboxes/5613c9cde69ddc09340c6beb/main.js.map
https://widget.trustpilot.com/bootstrap/v5/tp.widget.bootstrap.min.js
https://widget.trustpilot.com/bootstrap/v5/tp.widget.bootstrap.min.js.map
91

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for 101blockchains.com. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of 101blockchains.com on mobile screens.
Document uses legible font sizes — 99.99% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
SHOW DETAILS
html, body, div, span, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, address, cite, code, del, dfn, em, img, ins, kbd, q, samp, small, strong, sub, sup, var, b, i, hr, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, figure, figcaption, hgroup, menu, footer, header, nav, section, summary, time, mark, audio, video, button, input, textarea
0.01%
11px
SHOW DETAILS
99.99%
≥ 12px

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Mobile Friendly

Tap targets are not sized appropriately — 86% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.
Tap Target Size Overlapping Target
Blockchain Webinars
123x18
Blockchain Definitions
Blockchain Definitions
132x18
Blockchain Infographics
Blockchain Infographics
141x18
Blockchain Events
Blockchain Events
107x18
Blockchain Jobs
Blockchain Jobs
92x18
Blockchain Companies
Blockchain Companies
134x18
Consensus Algorithms
Consensus Algorithms
133x18
Blockchain Technology

Content Best Practices

Links do not have descriptive text — 1 link found
Make use of descriptive link text to assist search engines in understanding the content.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
25

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of 101blockchains.com. This includes details about web app manifests.

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of 101blockchains.com on mobile screens.
Contains some content when JavaScript is not available
Apps should display alternative content for when JavaScript is disabled.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Fast and reliable

Page load is not fast enough on mobile networks — Interactive at 13.2 s
Ensure that the page loads fast enough over a cellular network, to ensure good mobile user experience.
Current page does not respond with a 200 when offline
In order for Progressive Web Apps to be made available offline, ensure that the app is using a service worker.
`start_url` does not respond with a 200 when offline
Consider using a service worker for Progressive Web Apps to ensure greater reliability for the user, in the case of poor network conditions.

Installable

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://101blockchains.com/
Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Web app manifest does not meet the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
View Data

PWA Optimized

Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 104.26.9.194
Continent: North America
Country: United States
United States Flag
Region:
City:
Longitude: -97.822
Latitude: 37.751
Currencies: USD
USN
USS
Languages: English

Web Hosting Provider

Name IP Address
Cloudflare, Inc.
Registration

Domain Registrant

Private Registration: No
Name:
Organization:
Country:
City:
State:
Post Code:
Email:
Phone:
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Name IP Address
GoDaddy.com LLC 23.220.132.43
Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Safe
WOT Rating:
WOT Trustworthiness:
WOT Child Safety:
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: sni.cloudflaressl.com
Issued By: Cloudflare Inc ECC CA-3
Valid From: 16th July, 2020
Valid To: 16th July, 2021
Subject: CN = sni.cloudflaressl.com
O = Cloudflare, Inc.
L = San Francisco
S = US
Hash: 4d04c09a
Issuer: CN = Cloudflare Inc ECC CA-3
O = Cloudflare, Inc.
S = US
Version: 2
Serial Number: 13056783819296792696668389276942381467
Serial Number (Hex): 09D2A524D8F26195A016D02F86B4B19B
Valid From: 16th July, 2024
Valid To: 16th July, 2024
Signature Algorithm (Short Name): ecdsa-with-SHA256
Signature Algorithm (Long Name): ecdsa-with-SHA256
Authority Key Identifier: keyid:A5:CE:37:EA:EB:B0:75:0E:94:67:88:B4:45:FA:D9:24:10:87:96:1F
Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication
CRL Distribution Points:
Full Name:
URI:http://crl3.digicert.com/CloudflareIncECCCA-3.crl

Full Name:
URI:http://crl4.digicert.com/CloudflareIncECCCA-3.crl
Certificate Policies: Policy: 2.16.840.1.114412.1.1
CPS: https://www.digicert.com/CPS
Policy: 2.23.140.1.2.2
Authority Information Access: OCSP - URI:http://ocsp.digicert.com
CA Issuers - URI:http://cacerts.digicert.com/CloudflareIncECCCA-3.crt
SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : F6:5C:94:2F:D1:77:30:22:14:54:18:08:30:94:56:8E:
E3:4D:13:19:33:BF:DF:0C:2F:20:0B:CC:4E:F1:64:E3
Timestamp : Jul 16 18:21:18.751 2020 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:20:3E:93:0B:45:F9:EA:AC:E0:67:16:3D:1B:
EC:7C:1F:DE:D7:B8:FB:EF:7A:F3:3B:26:B8:80:C3:E4:
9A:BA:F2:6D:02:21:00:BA:22:E7:06:8C:3E:AC:C5:4A:
49:18:78:D6:4F:59:78:71:25:D8:7C:53:7B:38:C8:15:
8D:3B:78:7C:D6:23:1D
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 5C:DC:43:92:FE:E6:AB:45:44:B1:5E:9A:D4:56:E6:10:
37:FB:D5:FA:47:DC:A1:73:94:B2:5E:E6:F6:C7:0E:CA
Timestamp : Jul 16 18:21:18.799 2020 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:20:2C:F4:9A:06:96:2A:E8:01:00:62:EB:E2:
89:10:DA:66:06:79:C3:7F:94:3C:C4:CC:1D:6B:26:B8:
05:BD:F2:B9:02:21:00:AE:10:EE:CD:BA:62:BD:2D:7F:
88:89:C2:E8:12:E5:96:EF:5B:01:50:3E:21:54:6C:51:
9D:15:68:8E:3E:E8:0F
Key Usage: Digital Signature
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:101blockchains.com
DNS:sni.cloudflaressl.com
DNS:*.101blockchains.com
Technical

DNS Lookup

HTTP Response Headers

HTTP-Code: HTTP/1.1 200 OK
Date: 19th November, 2020
Content-Type: text/html; charset=UTF-8
Cache-Control: max-age=3600
Expires: 19th November, 2020
Server: cloudflare
Connection: keep-alive
Set-Cookie: *
Vary: X-Forwarded-Proto,Accept-Encoding
X-Powered-By: PHP/7.2.30
X-Pingback:
Link: <https://101blockchains.com/>; rel=shortlink
Referrer-Policy:
CF-Cache-Status: DYNAMIC
cf-request-id: 068413bae80000c1c0081da000000001
Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report?s=B0kFz8kMquZNR0rQLxxr0zErbGpo8DIW%2FuRyZSTFQPu1zNk2PtCVAl1M%2FhGFNcHr6w9ReixBwUY%2F8o%2BqvPf0xeJ9%2BKp%2BoZdhEs36qp2I52Qkvbw%3D"}],"group":"cf-nel","max_age":604800}
NEL: {"report_to":"cf-nel","max_age":604800}
CF-RAY: 5f4d223e38c9c1c0-IAD

Whois Lookup

Created: 23rd November, 2017
Changed: 17th November, 2019
Expires: 23rd November, 2021
Registrar: GoDaddy.com, LLC
Status: clientDeleteProhibited
clientRenewProhibited
clientTransferProhibited
clientUpdateProhibited
Nameservers: gwen.ns.cloudflare.com
oswald.ns.cloudflare.com
Full Whois: Domain Name: 101BLOCKCHAINS.COM
Registry Domain ID: 2190804729_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2019-11-17T12:55:31Z
Creation Date: 2017-11-23T03:51:02Z
Registry Expiry Date: 2021-11-23T03:51:02Z
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse@godaddy.com
Registrar Abuse Contact Phone: 480-624-2505
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientRenewProhibited https://icann.org/epp#clientRenewProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name Server: GWEN.NS.CLOUDFLARE.COM
Name Server: OSWALD.NS.CLOUDFLARE.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2020-11-19T21:48:02Z <<<

For more information on Whois status codes, please visit https://icann.org/epp

NOTICE: The expiration date displayed in this record is the date the
registrar's sponsorship of the domain name registration in the registry is
currently set to expire. This date does not necessarily reflect the expiration
date of the domain name registrant's agreement with the sponsoring
registrar. Users may consult the sponsoring registrar's Whois database to
view the registrar's reported date of expiration for this registration.

TERMS OF USE: You are not authorized to access or query our Whois
database through the use of electronic processes that are high-volume and
automated except as reasonably necessary to register domain names or
modify existing registrations; the Data in VeriSign Global Registry
Services' ("VeriSign") Whois database is provided by VeriSign for
information purposes only, and to assist persons in obtaining information
about or related to a domain name registration record. VeriSign does not
guarantee its accuracy. By submitting a Whois query, you agree to abide
by the following terms of use: You agree that you may use this Data only
for lawful purposes and that under no circumstances will you use this Data
to: (1) allow, enable, or otherwise support the transmission of mass
unsolicited, commercial advertising or solicitations via e-mail, telephone,
or facsimile; or (2) enable high volume, automated, electronic processes
that apply to VeriSign (or its computer systems). The compilation,
repackaging, dissemination or other use of this Data is expressly
prohibited without the prior written consent of VeriSign. You agree not to
use electronic processes that are automated and high-volume to access or
query the Whois database except as reasonably necessary to register
domain names or modify existing registrations. VeriSign reserves the right
to restrict your access to the Whois database in its sole discretion to ensure
operational stability. VeriSign may restrict or terminate your access to the
Whois database for failure to abide by these terms of use. VeriSign
reserves the right to modify these terms at any time.

The Registry database contains ONLY .COM, .NET, .EDU domains and
Registrars.
View Raw Whois

Nameservers

Name IP Address
gwen.ns.cloudflare.com 108.162.192.160
oswald.ns.cloudflare.com 172.64.33.218
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Subdomains

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Domain Valuation Snoop Score
dikaiologitika.gr
$9,773,588 USD 4/5
paybao.com.tw
0/5
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101blockchains.com by the numbers infographic

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