Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 46

    SEO

    Google-friendlier than
    18% of websites

sgst.cn

上海研发公共服务平台-首页

Page Load Speed

20.9 sec in total

First Response

1.4 sec

Resources Loaded

19.2 sec

Page Rendered

271 ms

sgst.cn screenshot

About Website

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

上海研发公共服务平台有效整合上海及长三角地区的科技资源,通过开放仪器设备与研究基地,共享科学数据和科技文献,提供专业技术、公益培训、专家咨询等服务,促进科技资源在全社会范围内的高校配置和共享利用,为全面提升上海科技国际竞争力提供有力的支撑。

Visit sgst.cn

Key Findings

We analyzed Sgst.cn page load time and found that the first response time was 1.4 sec and then it took 19.5 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

sgst.cn performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value12.2 s

0/100

25%

SI (Speed Index)

Value15.1 s

1/100

10%

TBT (Total Blocking Time)

Value10,640 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.058

98/100

15%

TTI (Time to Interactive)

Value18.7 s

3/100

10%

Network Requests Diagram

sgst.cn

1403 ms

index_20150624.css

603 ms

jquery-1.7.1.min.js

1050 ms

index_20150928.js

434 ms

ad.js

453 ms

Our browser made a total of 58 requests to load all elements on the main page. We found that 91% of them (53 requests) were addressed to the original Sgst.cn, 3% (2 requests) were made to Member.sgst.cn and 2% (1 request) were made to Ucx.sgst.cn. The less responsive or slowest element that took the longest time to load (16.1 sec) relates to the external source Member.sgst.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 220.6 kB (23%)

Content Size

949.1 kB

After Optimization

728.5 kB

In fact, the total size of Sgst.cn main page is 949.1 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. Images take 735.9 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 35.3 kB

  • Original 45.0 kB
  • After minification 39.5 kB
  • After compression 9.8 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 5.5 kB, which is 12% 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 35.3 kB or 78% of the original size.

Image Optimization

-9%

Potential reduce by 64.3 kB

  • Original 735.9 kB
  • After minification 671.6 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. Sgst images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 90.1 kB

  • Original 130.1 kB
  • After minification 115.2 kB
  • After compression 40.0 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 90.1 kB or 69% of the original size.

CSS Optimization

-81%

Potential reduce by 31.0 kB

  • Original 38.0 kB
  • After minification 35.8 kB
  • After compression 7.1 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. Sgst.cn needs all CSS files to be minified and compressed as it can save up to 31.0 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (25%)

Requests Now

56

After Optimization

42

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sgst. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

sgst.cn accessibility score

66

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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 valid value for its [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

Links do not have a discernible name

Best Practices

sgst.cn best practices score

67

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

sgst.cn SEO score

46

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

High

robots.txt is not valid

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

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GBK

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sgst.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 Sgst.cn main page’s claimed encoding is gbk. 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

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