Report Summary

  • 48

    Performance

    Renders faster than
    67% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

Page Load Speed

92 sec in total

First Response

431 ms

Resources Loaded

67.9 sec

Page Rendered

23.6 sec

toptenz.net screenshot

About Website

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Key Findings

We analyzed Toptenz.net page load time and found that the first response time was 431 ms and then it took 91.6 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

toptenz.net performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

60/100

25%

SI (Speed Index)

Value4.6 s

70/100

10%

TBT (Total Blocking Time)

Value2,150 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.3 s

61/100

10%

Network Requests Diagram

toptenz.net

431 ms

www.toptenz.net

2106 ms

dall.js

2542 ms

gpt.js

2473 ms

rochester.js

2409 ms

Our browser made a total of 173 requests to load all elements on the main page. We found that 44% of them (76 requests) were addressed to the original Toptenz.net, 15% (26 requests) were made to Securepubads.g.doubleclick.net and 5% (9 requests) were made to Ib.adnxs.com. The less responsive or slowest element that took the longest time to load (5.9 sec) relates to the external source Securepubads.g.doubleclick.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.8 MB (55%)

Content Size

6.9 MB

After Optimization

3.1 MB

In fact, the total size of Toptenz.net main page is 6.9 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 2.8 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 160.2 kB

  • Original 191.8 kB
  • After minification 191.8 kB
  • After compression 31.6 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 160.2 kB or 84% of the original size.

Image Optimization

-17%

Potential reduce by 367.4 kB

  • Original 2.2 MB
  • After minification 1.9 MB

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, Top Tenz needs image optimization as it can save up to 367.4 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-64%

Potential reduce by 1.8 MB

  • Original 2.8 MB
  • After minification 2.7 MB
  • After compression 1.0 MB

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 1.8 MB or 64% of the original size.

CSS Optimization

-87%

Potential reduce by 1.5 MB

  • Original 1.7 MB
  • After minification 1.6 MB
  • After compression 215.1 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. Toptenz.net needs all CSS files to be minified and compressed as it can save up to 1.5 MB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 101 (64%)

Requests Now

159

After Optimization

58

The browser has sent 159 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Top Tenz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 79 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

toptenz.net accessibility score

81

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.

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

toptenz.net 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

SEO Factors

toptenz.net SEO score

92

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Toptenz.net 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 Toptenz.net main page’s claimed encoding is utf8. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph data is detected on the main page of Top Tenz. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: