Tools & Wizards About Us

Report Summary

  • 67

    Performance

    Renders faster than
    79% of other websites

  • 46

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

tv.youku.com

Page Load Speed

24.5 sec in total

First Response

5.2 sec

Resources Loaded

18 sec

Page Rendered

1.2 sec

About Website

Welcome to tv.youku.com homepage info - get ready to check Tv Youku best content for China right away, or after learning these important things about tv.youku.com

视频服务平台,提供视频播放,视频发布,视频搜索,视频分享

Visit tv.youku.com

Key Findings

We analyzed Tv.youku.com page load time and found that the first response time was 5.2 sec and then it took 19.2 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

tv.youku.com performance score

67

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

22/100

25%

SI (Speed Index)

Value4.7 s

69/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.6 s

82/100

10%

Network Requests Diagram

tv.youku.com

5245 ms

yk.css

426 ms

grid_pc.css

446 ms

uhome.css

465 ms

jquery.js

709 ms

Our browser made a total of 238 requests to load all elements on the main page. We found that 0% of them (1 request) were addressed to the original Tv.youku.com, 29% (68 requests) were made to Static.youku.com and 12% (28 requests) were made to R1.ykimg.com. The less responsive or slowest element that took the longest time to load (7.2 sec) relates to the external source Account.youku.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (29%)

Content Size

4.4 MB

After Optimization

3.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tv.youku.com main page is 4.4 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 3.0 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 241.5 kB

  • Original 283.3 kB
  • After minification 247.9 kB
  • After compression 41.8 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 35.4 kB, which is 13% 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 241.5 kB or 85% of the original size.

Image Optimization

-10%

Potential reduce by 300.5 kB

  • Original 3.0 MB
  • After minification 2.7 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. Tv Youku images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 422.9 kB

  • Original 665.6 kB
  • After minification 568.0 kB
  • After compression 242.7 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 422.9 kB or 64% of the original size.

CSS Optimization

-85%

Potential reduce by 324.5 kB

  • Original 382.7 kB
  • After minification 349.9 kB
  • After compression 58.2 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. Tv.youku.com needs all CSS files to be minified and compressed as it can save up to 324.5 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 62 (27%)

Requests Now

233

After Optimization

171

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 233 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tv Youku. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 38 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

tv.youku.com accessibility score

46

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

tv.youku.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

tv.youku.com SEO score

83

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

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tv.youku.com 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 Chinese. Our system also found out that Tv.youku.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

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