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sdu.edu.cn screenshot

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

sdu.edu.cn

山东大学 SHANDONG UNIVERSITY

Page Load Speed

4.2 sec in total

First Response

785 ms

Resources Loaded

3.3 sec

Page Rendered

113 ms

sdu.edu.cn screenshot

About Website

Click here to check amazing Sdu content for China. Otherwise, check out these important facts you probably never knew about sdu.edu.cn

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Key Findings

We analyzed Sdu.edu.cn page load time and found that the first response time was 785 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

sdu.edu.cn performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.1 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.4 s

100/100

25%

SI (Speed Index)

Value3.0 s

94/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.009

100/100

15%

TTI (Time to Interactive)

Value1.1 s

100/100

10%

Network Requests Diagram

sdu.edu.cn

785 ms

login.css

257 ms

jquery.js

2031 ms

login.js

509 ms

login.css

258 ms

Our browser made a total of 10 requests to load all elements on the main page. We found that all of those requests were addressed to Sdu.edu.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Sdu.edu.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 210.7 kB (59%)

Content Size

356.6 kB

After Optimization

145.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sdu.edu.cn main page is 356.6 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. Only 5% of websites need less resources to load. Javascripts take 231.4 kB which makes up the majority of the site volume.

HTML Optimization

-65%

Potential reduce by 3.5 kB

  • Original 5.4 kB
  • After minification 4.0 kB
  • After compression 1.9 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 1.3 kB, which is 25% 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 3.5 kB or 65% of the original size.

Image Optimization

-2%

Potential reduce by 2.9 kB

  • Original 116.3 kB
  • After minification 113.4 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. Sdu images are well optimized though.

JavaScript Optimization

-87%

Potential reduce by 201.8 kB

  • Original 231.4 kB
  • After minification 103.8 kB
  • After compression 29.6 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 201.8 kB or 87% of the original size.

CSS Optimization

-70%

Potential reduce by 2.5 kB

  • Original 3.5 kB
  • After minification 2.9 kB
  • After compression 1.0 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. Sdu.edu.cn needs all CSS files to be minified and compressed as it can save up to 2.5 kB or 70% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

9

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sdu. According to our analytics all requests are already optimized.

Network Requests Diagram

sdu.edu.cn

sdu.edu.cn

785 ms

login.css

login.css

257 ms

jquery.js

jquery.js

2031 ms

login.js

login.js

509 ms

login.css

login.css

258 ms

s

s

257 ms

opt_title.gif

opt_title.gif

260 ms

button.gif

button.gif

509 ms

input_bg.gif

input_bg.gif

510 ms

footer.gif

footer.gif

511 ms

Accessibility Review

sdu.edu.cn accessibility score

66

Accessibility Issues

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

Form elements do not have associated labels

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

sdu.edu.cn 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

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

sdu.edu.cn SEO score

92

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

    N/A

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sdu.edu.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) and no language is claimed in <html> or <meta> tags either. Our system also found out that Sdu.edu.cn main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

sdu.edu.cn

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