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Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

cleanedge.com

Clean Edge | Indexing the Clean Tech Economy

Page Load Speed

951 ms in total

First Response

18 ms

Resources Loaded

618 ms

Page Rendered

315 ms

About Website

Welcome to cleanedge.com homepage info - get ready to check Clean Edge best content for United States right away, or after learning these important things about cleanedge.com

Clean Edge offers an unparalleled suite of indexes, benchmarking reports, advisory services, and events devoted to the clean-energy economy.

Visit cleanedge.com

Key Findings

We analyzed Cleanedge.com page load time and found that the first response time was 18 ms and then it took 933 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

cleanedge.com performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value3.3 s

91/100

10%

TBT (Total Blocking Time)

Value370 ms

71/100

30%

CLS (Cumulative Layout Shift)

Value0.516

15/100

15%

TTI (Time to Interactive)

Value7.0 s

53/100

10%

Network Requests Diagram

cleanedge.com

18 ms

cleanedge.com

53 ms

css_4YjbCzYweOIHMQ4VIKwd89W9j4q7xd30nLihWTmzoEI.css

7 ms

css_Aq57peVANdMZvIbY_XJMw7sh-1aDLTNvEwXtP9SMQuk.css

36 ms

css_9lqLG5MuWL1lzy76a_AuIihcXFA4uvTTalBcAC5naVc.css

23 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 88% of them (37 requests) were addressed to the original Cleanedge.com, 5% (2 requests) were made to Googletagmanager.com and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (227 ms) relates to the external source Googletagmanager.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 250.5 kB (24%)

Content Size

1.0 MB

After Optimization

773.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cleanedge.com main page is 1.0 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 60% of websites need less resources to load. Images take 568.5 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 33.5 kB

  • Original 42.9 kB
  • After minification 42.9 kB
  • After compression 9.4 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 33.5 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 378 B

  • Original 568.5 kB
  • After minification 568.1 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. Clean Edge images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 26.2 kB

  • Original 188.3 kB
  • After minification 188.1 kB
  • After compression 162.1 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 26.2 kB or 14% of the original size.

CSS Optimization

-85%

Potential reduce by 190.4 kB

  • Original 223.9 kB
  • After minification 221.7 kB
  • After compression 33.5 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Cleanedge.com needs all CSS files to be minified and compressed as it can save up to 190.4 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (46%)

Requests Now

37

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Clean Edge. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

cleanedge.com accessibility score

85

Accessibility Issues

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.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

cleanedge.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

cleanedge.com SEO score

93

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

Image elements do not have [alt] attributes

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

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 Cleanedge.com 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 Cleanedge.com 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 Clean Edge. 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: