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spst.shanghaitech.edu.cn screenshot

Report Summary

  • 71

    Performance

    Renders faster than
    82% of other websites

  • 38

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 63

    SEO

    Google-friendlier than
    24% of websites

spst.shanghaitech.edu.cn

物质科学与技术学院

Page Load Speed

9 sec in total

First Response

3.1 sec

Resources Loaded

5.8 sec

Page Rendered

183 ms

spst.shanghaitech.edu.cn screenshot

About Website

Welcome to spst.shanghaitech.edu.cn homepage info - get ready to check Spst Shanghaitech best content for China right away, or after learning these important things about spst.shanghaitech.edu.cn

上海科技大学是由上海市人民政府与中国科学院共同举办、共同建设、共同管理，经教育部批准筹建的全日制研究型高等学校。学校由上海市主管。目前下设物质科学与技术学院、信息科学与技术学院、生命科学与技术学院、创业与管理学院等四个学院。学校坚持以人为本、改革创新、科教结合、开放合作、服务社会、追求卓越的办学理念，努力建设成为一所教育、科研、创业深度融合的小规模、高水平、国际化的研究型大学。学校坐落于中国科学院...

Visit spst.shanghaitech.edu.cn

Key Findings

We analyzed Spst.shanghaitech.edu.cn page load time and found that the first response time was 3.1 sec and then it took 5.9 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

spst.shanghaitech.edu.cn performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

90/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

46/100

25%

SI (Speed Index)

Value24.2 s

0/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.168

71/100

15%

TTI (Time to Interactive)

Value2.9 s

96/100

10%

Network Requests Diagram

spst.shanghaitech.edu.cn

3101 ms

index.css

1739 ms

spst.css

899 ms

spst.jpg

1491 ms

red-logo.png

337 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that 38% of them (6 requests) were addressed to the original Spst.shanghaitech.edu.cn, 63% (10 requests) were made to Shanghaitech.edu.cn. The less responsive or slowest element that took the longest time to load (3.1 sec) belongs to the original domain Spst.shanghaitech.edu.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 36.6 kB (15%)

Content Size

246.1 kB

After Optimization

209.5 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Spst.shanghaitech.edu.cn main page is 246.1 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Images take 205.2 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 15.4 kB

  • Original 19.7 kB
  • After minification 15.4 kB
  • After compression 4.3 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 4.3 kB, which is 22% 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 15.4 kB or 78% of the original size.

Image Optimization

-2%

Potential reduce by 3.3 kB

  • Original 205.2 kB
  • After minification 201.9 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. Spst Shanghaitech images are well optimized though.

CSS Optimization

-84%

Potential reduce by 17.8 kB

  • Original 21.2 kB
  • After minification 17.2 kB
  • After compression 3.4 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. Spst.shanghaitech.edu.cn needs all CSS files to be minified and compressed as it can save up to 17.8 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (53%)

Requests Now

15

After Optimization

7

  • Images
  • CSS

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

Network Requests Diagram

spst.shanghaitech.edu.cn

spst.shanghaitech.edu.cn

3101 ms

index.css

index.css

1739 ms

spst.css

spst.css

899 ms

spst.jpg

spst.jpg

1491 ms

red-logo.png

red-logo.png

337 ms

red-search.jpg

red-search.jpg

567 ms

red-index_01.jpg

red-index_01.jpg

953 ms

red-menubg.png

red-menubg.png

908 ms

index_07.jpg

index_07.jpg

893 ms

index_10.jpg

index_10.jpg

662 ms

index_11.jpg

index_11.jpg

665 ms

index_02.jpg

index_02.jpg

1660 ms

red-index_08.jpg

red-index_08.jpg

974 ms

left.jpg

left.jpg

625 ms

dian.jpg

dian.jpg

608 ms

wzxy.jpg

wzxy.jpg

1769 ms

Accessibility Review

spst.shanghaitech.edu.cn accessibility score

38

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

spst.shanghaitech.edu.cn best practices score

75

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

spst.shanghaitech.edu.cn SEO score

63

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

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Spst.shanghaitech.edu.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Spst.shanghaitech.edu.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

spst.shanghaitech.edu.cn

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