Tools & Wizards About Us
videojs.com screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

videojs.com

Video.js - Make your player yours | Video.js

Page Load Speed

28.9 sec in total

First Response

537 ms

Resources Loaded

10.9 sec

Page Rendered

17.4 sec

videojs.com screenshot

About Website

Click here to check amazing Video Js content for China. Otherwise, check out these important facts you probably never knew about videojs.com

The world's most popular open source HTML5 player framework

Visit videojs.com

Key Findings

We analyzed Videojs.com page load time and found that the first response time was 537 ms and then it took 28.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

videojs.com performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value34.2 s

0/100

25%

SI (Speed Index)

Value21.0 s

0/100

10%

TBT (Total Blocking Time)

Value42,750 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.027

100/100

15%

TTI (Time to Interactive)

Value53.8 s

0/100

10%

Network Requests Diagram

videojs.com

537 ms

video-js.css

1248 ms

css

1232 ms

main.css

428 ms

video.js

1126 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 63% of them (15 requests) were addressed to the original Videojs.com, 13% (3 requests) were made to Vjs.zencdn.net and 8% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (7.9 sec) relates to the external source Img.shields.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 271.8 kB (21%)

Content Size

1.3 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Videojs.com main page is 1.3 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. 70% of websites need less resources to load. Images take 996.3 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 15.4 kB

  • Original 19.9 kB
  • After minification 19.4 kB
  • After compression 4.5 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 15.4 kB or 77% of the original size.

Image Optimization

-5%

Potential reduce by 54.7 kB

  • Original 996.3 kB
  • After minification 941.7 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. Video Js images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 57.0 kB

  • Original 101.8 kB
  • After minification 101.8 kB
  • After compression 44.8 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 57.0 kB or 56% of the original size.

CSS Optimization

-83%

Potential reduce by 144.8 kB

  • Original 174.6 kB
  • After minification 171.6 kB
  • After compression 29.8 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. Videojs.com needs all CSS files to be minified and compressed as it can save up to 144.8 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (14%)

Requests Now

21

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Video Js. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

videojs.com

videojs.com

537 ms

video-js.css

video-js.css

1248 ms

css

css

1232 ms

main.css

main.css

428 ms

video.js

video.js

1126 ms

videojs-mux.js

videojs-mux.js

5753 ms

home.js

home.js

646 ms

ga.js

ga.js

3933 ms

logo.png

logo.png

3992 ms

video.js.svg

video.js.svg

7886 ms

instagram.png

instagram.png

3550 ms

twitter.png

twitter.png

3518 ms

microsoft.png

microsoft.png

3459 ms

dropbox.png

dropbox.png

3517 ms

github.png

github.png

3518 ms

brightcove.png

brightcove.png

3497 ms

fastly.png

fastly.png

3497 ms

ign.png

ign.png

3497 ms

funnyordie.png

funnyordie.png

3496 ms

guardian.png

guardian.png

3499 ms

4GwpJM7qx9X5Obd9KsnKxQ.ttf

4GwpJM7qx9X5Obd9KsnKxQ.ttf

4039 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

3769 ms

__utm.gif

__utm.gif

3622 ms

oceans.png

oceans.png

266 ms

Accessibility Review

videojs.com accessibility score

98

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.

Best Practices

videojs.com 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

Uses deprecated APIs

High

Missing source maps for large first-party JavaScript

SEO Factors

videojs.com 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

    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 Videojs.com 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 Videojs.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

videojs.com

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