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sjedu.cn screenshot

Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 72

    SEO

    Google-friendlier than
    31% of websites

sjedu.cn

上海市松江区教育局

Page Load Speed

6.5 sec in total

First Response

701 ms

Resources Loaded

5.7 sec

Page Rendered

80 ms

sjedu.cn screenshot

About Website

Welcome to sjedu.cn homepage info - get ready to check Sjedu best content for China right away, or after learning these important things about sjedu.cn

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Visit sjedu.cn

Key Findings

We analyzed Sjedu.cn page load time and found that the first response time was 701 ms and then it took 5.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

sjedu.cn performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.7 s

0/100

10%

LCP (Largest Contentful Paint)

Value10.9 s

0/100

25%

SI (Speed Index)

Value12.8 s

2/100

10%

TBT (Total Blocking Time)

Value90 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.055

98/100

15%

TTI (Time to Interactive)

Value13.8 s

10/100

10%

Network Requests Diagram

sjedu.cn

701 ms

www.sjedu.cn

999 ms

bootstrap.min.css

2586 ms

style.css

388 ms

mobile.css

589 ms

Our browser made a total of 25 requests to load all elements on the main page. We found that 64% of them (16 requests) were addressed to the original Sjedu.cn, 36% (9 requests) were made to Cdn.sjedu.cn. The less responsive or slowest element that took the longest time to load (3.9 sec) relates to the external source Cdn.sjedu.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 677.6 kB (76%)

Content Size

892.6 kB

After Optimization

215.0 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Sjedu.cn main page is 892.6 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. Javascripts take 735.9 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 2.5 kB

  • Original 3.4 kB
  • After minification 3.1 kB
  • After compression 911 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 2.5 kB or 73% of the original size.

JavaScript Optimization

-74%

Potential reduce by 547.8 kB

  • Original 735.9 kB
  • After minification 544.3 kB
  • After compression 188.0 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 547.8 kB or 74% of the original size.

CSS Optimization

-83%

Potential reduce by 127.3 kB

  • Original 153.4 kB
  • After minification 144.8 kB
  • After compression 26.0 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. Sjedu.cn needs all CSS files to be minified and compressed as it can save up to 127.3 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (91%)

Requests Now

23

After Optimization

2

  • JavaScript
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sjedu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sjedu.cn

sjedu.cn

701 ms

www.sjedu.cn

www.sjedu.cn

999 ms

bootstrap.min.css

bootstrap.min.css

2586 ms

style.css

style.css

388 ms

mobile.css

mobile.css

589 ms

xxgk.css

xxgk.css

587 ms

allztwz.css

allztwz.css

589 ms

zhjy.css

zhjy.css

589 ms

umeditor.css

umeditor.css

2862 ms

jquery-ui-1.9.2.custom.css

jquery-ui-1.9.2.custom.css

3332 ms

jquery.min.js

jquery.min.js

3619 ms

bootstrap.min.js

bootstrap.min.js

3424 ms

angular.min.js

angular.min.js

3726 ms

angular-route.min.js

angular-route.min.js

3264 ms

util2.js

util2.js

3941 ms

app.js

app.js

589 ms

require.min.js

require.min.js

3720 ms

web.js

web.js

816 ms

mobile.js

mobile.js

784 ms

silverlight.js

silverlight.js

971 ms

swfobject.js

swfobject.js

784 ms

wmvplayer.js

wmvplayer.js

973 ms

jwplayer.js

jwplayer.js

974 ms

jwplayer.html5.js

jwplayer.html5.js

1739 ms

jwpsrv.js

jwpsrv.js

978 ms

Accessibility Review

sjedu.cn accessibility score

80

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

Image elements do not have [alt] attributes

Best Practices

sjedu.cn 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

sjedu.cn SEO score

72

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

High

Tap targets are not sized appropriately

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 Sjedu.cn 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 Sjedu.cn 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

sjedu.cn

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