Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

Page Load Speed

30.8 sec in total

First Response

1 sec

Resources Loaded

28.4 sec

Page Rendered

1.4 sec

permutation.io screenshot

About Website

Visit permutation.io now to see the best up-to-date Permutation content and also check out these interesting facts you probably never knew about permutation.io

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Key Findings

We analyzed Permutation.io page load time and found that the first response time was 1 sec and then it took 29.8 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

permutation.io performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

68/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

38/100

25%

SI (Speed Index)

Value3.4 s

89/100

10%

TBT (Total Blocking Time)

Value2,100 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.5 s

30/100

10%

Network Requests Diagram

permutation.io

1022 ms

analytics.js

121 ms

permutation.js

299 ms

font-awesome.min.css

1610 ms

themify-icons.css

4725 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 85% of them (35 requests) were addressed to the original Permutation.io, 7% (3 requests) were made to Google-analytics.com and 5% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (18.4 sec) belongs to the original domain Permutation.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 499.1 kB (56%)

Content Size

886.3 kB

After Optimization

387.2 kB

In fact, the total size of Permutation.io main page is 886.3 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. 25% of websites need less resources to load. CSS take 304.6 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 8.7 kB

  • Original 11.5 kB
  • After minification 7.9 kB
  • After compression 2.8 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. This page needs HTML code to be minified as it can gain 3.5 kB, which is 31% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 8.7 kB or 75% of the original size.

Image Optimization

-9%

Potential reduce by 25.2 kB

  • Original 268.1 kB
  • After minification 243.0 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. Permutation images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 206.7 kB

  • Original 302.1 kB
  • After minification 286.0 kB
  • After compression 95.3 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 206.7 kB or 68% of the original size.

CSS Optimization

-85%

Potential reduce by 258.6 kB

  • Original 304.6 kB
  • After minification 251.8 kB
  • After compression 46.1 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. Permutation.io needs all CSS files to be minified and compressed as it can save up to 258.6 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (67%)

Requests Now

33

After Optimization

11

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Permutation. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

permutation.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

permutation.io 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

permutation.io SEO score

91

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Page is blocked from indexing

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Permutation.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), while the claimed language is English. Our system also found out that Permutation.io 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 Permutation. 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: