Report Summary

  • 71

    Performance

    Renders faster than
    82% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

kubernetes.io

Kubernetes

Page Load Speed

1.3 sec in total

First Response

34 ms

Resources Loaded

706 ms

Page Rendered

558 ms

kubernetes.io screenshot

About Website

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

Kubernetes, also known as K8s, is an open-source system for automating deployment, scaling, and management of containerized applications. It groups containers that make up an application into logical ...

Visit kubernetes.io

Key Findings

We analyzed Kubernetes.io page load time and found that the first response time was 34 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

kubernetes.io performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

18/100

25%

SI (Speed Index)

Value3.2 s

92/100

10%

TBT (Total Blocking Time)

Value130 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value3.8 s

89/100

10%

Network Requests Diagram

kubernetes.io

34 ms

main.css

7 ms

jquery.min.js

32 ms

script.js

10 ms

css

22 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 54% of them (20 requests) were addressed to the original Kubernetes.io, 11% (4 requests) were made to Fonts.gstatic.com and 8% (3 requests) were made to S.ytimg.com. The less responsive or slowest element that took the longest time to load (581 ms) relates to the external source P1.answerdash.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 509.5 kB (70%)

Content Size

730.1 kB

After Optimization

220.6 kB

In fact, the total size of Kubernetes.io main page is 730.1 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. 50% of websites need less resources to load. Javascripts take 386.0 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 11.3 kB

  • Original 14.7 kB
  • After minification 13.5 kB
  • After compression 3.4 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 11.3 kB or 77% of the original size.

Image Optimization

-3%

Potential reduce by 1.4 kB

  • Original 41.8 kB
  • After minification 40.4 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. Kubernetes images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 259.1 kB

  • Original 386.0 kB
  • After minification 385.9 kB
  • After compression 126.9 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 259.1 kB or 67% of the original size.

CSS Optimization

-83%

Potential reduce by 237.6 kB

  • Original 287.6 kB
  • After minification 287.1 kB
  • After compression 50.0 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. Kubernetes.io needs all CSS files to be minified and compressed as it can save up to 237.6 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (32%)

Requests Now

31

After Optimization

21

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kubernetes. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

kubernetes.io accessibility score

81

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

kubernetes.io best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

kubernetes.io SEO score

54

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

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kubernetes.io can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Kubernetes.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 data is detected on the main page of Kubernetes. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: