Tools & Wizards About Us
descartes.io screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    55% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

descartes.io

Page Load Speed

32 ms in total

First Response

15 ms

Resources Loaded

17 ms

Page Rendered

0 ms

descartes.io screenshot

About Website

Visit descartes.io now to see the best up-to-date Descartes content for United States and also check out these interesting facts you probably never knew about descartes.io

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Key Findings

We analyzed Descartes.io page load time and found that the first response time was 15 ms and then it took 17 ms 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

descartes.io performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

26/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

38/100

25%

SI (Speed Index)

Value3.9 s

83/100

10%

TBT (Total Blocking Time)

Value1,630 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.163

72/100

15%

TTI (Time to Interactive)

Value13.6 s

11/100

10%

Network Requests Diagram

descartes.io

15 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Descartes.io and no external sources were called. The less responsive or slowest element that took the longest time to load (15 ms) belongs to the original domain Descartes.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 5.0 kB (4%)

Content Size

120.5 kB

After Optimization

115.5 kB

  • HTML
  • CSS

In fact, the total size of Descartes.io main page is 120.5 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. CSS take 120.4 kB which makes up the majority of the site volume.

HTML Optimization

-18%

Potential reduce by 23 B

  • Original 127 B
  • After minification 127 B
  • After compression 104 B

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 23 B or 18% of the original size.

CSS Optimization

-4%

Potential reduce by 5.0 kB

  • Original 120.4 kB
  • After minification 116.1 kB
  • After compression 115.4 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. Descartes.io has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Network Requests Diagram

descartes.io

descartes.io

15 ms

Accessibility Review

descartes.io accessibility score

96

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

Best Practices

descartes.io best practices score

83

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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

descartes.io SEO score

100

Search Engine Optimization Advices

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

    N/A

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Descartes.io can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Descartes.io main page’s claimed encoding is . 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

descartes.io

Open Graph description is not detected on the main page of Descartes. 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: