Tools & Wizards About Us
life.xmu.edu.cn screenshot

Report Summary

  • 27

    Performance

    Renders faster than
    47% of other websites

  • 58

    Accessibility

    Visual factors better than
    that of 25% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 74

    SEO

    Google-friendlier than
    32% of websites

life.xmu.edu.cn

厦门大学生命科学学院

Page Load Speed

9 sec in total

First Response

3.4 sec

Resources Loaded

5.4 sec

Page Rendered

209 ms

life.xmu.edu.cn screenshot

About Website

Visit life.xmu.edu.cn now to see the best up-to-date Life Xmu content for China and also check out these interesting facts you probably never knew about life.xmu.edu.cn

厦门大学生命科学学院

Visit life.xmu.edu.cn

Key Findings

We analyzed Life.xmu.edu.cn page load time and found that the first response time was 3.4 sec and then it took 5.6 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

life.xmu.edu.cn performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

24/100

10%

LCP (Largest Contentful Paint)

Value20.8 s

0/100

25%

SI (Speed Index)

Value11.5 s

5/100

10%

TBT (Total Blocking Time)

Value1,240 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.017

100/100

15%

TTI (Time to Interactive)

Value8.8 s

35/100

10%

Network Requests Diagram

life.xmu.edu.cn

3411 ms

sty.css

560 ms

classbase.js

837 ms

windowopener.js

1116 ms

divwin.css

565 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that all of those requests were addressed to Life.xmu.edu.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (3.4 sec) belongs to the original domain Life.xmu.edu.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 185.2 kB (36%)

Content Size

521.2 kB

After Optimization

336.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Life.xmu.edu.cn main page is 521.2 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. 20% of websites need less resources to load. Images take 403.3 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 75.6 kB

  • Original 86.5 kB
  • After minification 77.9 kB
  • After compression 10.9 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. 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 75.6 kB or 87% of the original size.

Image Optimization

-21%

Potential reduce by 84.3 kB

  • Original 403.3 kB
  • After minification 318.9 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. Obviously, Life Xmu needs image optimization as it can save up to 84.3 kB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-81%

Potential reduce by 23.0 kB

  • Original 28.5 kB
  • After minification 19.5 kB
  • After compression 5.4 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 23.0 kB or 81% of the original size.

CSS Optimization

-74%

Potential reduce by 2.2 kB

  • Original 2.9 kB
  • After minification 2.2 kB
  • After compression 771 B

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. Life.xmu.edu.cn needs all CSS files to be minified and compressed as it can save up to 2.2 kB or 74% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

34

After Optimization

34

  • Images
  • JavaScript
  • CSS

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Life Xmu. According to our analytics all requests are already optimized.

Network Requests Diagram

life.xmu.edu.cn

life.xmu.edu.cn

3411 ms

sty.css

sty.css

560 ms

classbase.js

classbase.js

837 ms

windowopener.js

windowopener.js

1116 ms

divwin.css

divwin.css

565 ms

ListMenu.js

ListMenu.js

1132 ms

bu_search.gif

bu_search.gif

280 ms

l1.png

l1.png

287 ms

more.gif

more.gif

285 ms

2.gif

2.gif

280 ms

66.gif

66.gif

558 ms

3.gif

3.gif

560 ms

1.gif

1.gif

575 ms

ding.jpg

ding.jpg

1726 ms

22.jpg

22.jpg

1146 ms

0a427b04-0e5e-42a9-b7ba-c6f22b808a45.jpg

0a427b04-0e5e-42a9-b7ba-c6f22b808a45.jpg

838 ms

dot.jpg

dot.jpg

878 ms

bgg1.gif

bgg1.gif

529 ms

chengguo2.jpg

chengguo2.jpg

1385 ms

teacher2.jpg

teacher2.jpg

1345 ms

djhy.jpg

djhy.jpg

1340 ms

jz.png

jz.png

1377 ms

11a.jpg

11a.jpg

1406 ms

bg1.png

bg1.png

1618 ms

bg2.png

bg2.png

1623 ms

bg3.png

bg3.png

1657 ms

bg4.png

bg4.png

1655 ms

bg5.png

bg5.png

1683 ms

bg6.png

bg6.png

1685 ms

bg7.png

bg7.png

1896 ms

bg10.png

bg10.png

1900 ms

bg9.png

bg9.png

1722 ms

bg8.png

bg8.png

1716 ms

66b.png

66b.png

1744 ms

77.jpg

77.jpg

1744 ms

Accessibility Review

life.xmu.edu.cn accessibility score

58

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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

life.xmu.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

life.xmu.edu.cn SEO score

74

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

    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 Life.xmu.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 Life.xmu.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

life.xmu.edu.cn

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