Report Summary

  • 3

    Performance

    Renders faster than
    20% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

cbeci.org

Cambridge Blockchain Network Sustainability Index: CBECI

Page Load Speed

1.5 sec in total

First Response

137 ms

Resources Loaded

1.2 sec

Page Rendered

158 ms

cbeci.org screenshot

About Website

Click here to check amazing CBECI content for United States. Otherwise, check out these important facts you probably never knew about cbeci.org

The Cambridge Blockchain Network Sustainability Index (CBNSI) is created and maintained by the Cambridge Digital Assets Programme (CDAP) Team at the Cambridge Centre for Alternative Finance, an indepe...

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Key Findings

We analyzed Cbeci.org page load time and found that the first response time was 137 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

cbeci.org performance score

3

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.6 s

2/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

7/100

25%

SI (Speed Index)

Value11.0 s

6/100

10%

TBT (Total Blocking Time)

Value4,710 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.812

4/100

15%

TTI (Time to Interactive)

Value18.2 s

3/100

10%

Network Requests Diagram

137 ms

cbeci

289 ms

icon

52 ms

css

70 ms

materialdesignicons.min.css

33 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Cbeci.org, 11% (2 requests) were made to Fonts.googleapis.com and 11% (2 requests) were made to Cdn.jsdelivr.net. The less responsive or slowest element that took the longest time to load (727 ms) relates to the external source Ccaf.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 109.7 kB (72%)

Content Size

151.4 kB

After Optimization

41.7 kB

In fact, the total size of Cbeci.org main page is 151.4 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 20% of websites need less resources to load. HTML takes 150.1 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 109.4 kB

  • Original 150.1 kB
  • After minification 150.0 kB
  • After compression 40.7 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 109.4 kB or 73% of the original size.

Image Optimization

-20%

Potential reduce by 258 B

  • Original 1.3 kB
  • After minification 1.0 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, CBECI needs image optimization as it can save up to 258 B or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

Requests Breakdown

Number of requests can be reduced by 9 (64%)

Requests Now

14

After Optimization

5

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CBECI. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

cbeci.org accessibility score

86

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA input fields do not have accessible names

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

cbeci.org best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

cbeci.org SEO score

89

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cbeci.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Cbeci.org main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

Open Graph description is not detected on the main page of CBECI. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: