45.4 sec in total
2.5 sec
42.5 sec
436 ms
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Visit tsinghua-lx.comWe analyzed Tsinghua-lx.com page load time and found that the first response time was 2.5 sec and then it took 42.9 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. Unfortunately, there were 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
tsinghua-lx.com performance score
name
value
score
weighting
Value4.5 s
15/100
10%
Value9.3 s
1/100
25%
Value5.4 s
56/100
10%
Value90 ms
99/100
30%
Value0.909
3/100
15%
Value6.8 s
55/100
10%
2525 ms
5971 ms
1626 ms
1647 ms
6142 ms
Our browser made a total of 88 requests to load all elements on the main page. We found that 72% of them (63 requests) were addressed to the original Tsinghua-lx.com, 13% (11 requests) were made to H.qiao.baidu.com and 6% (5 requests) were made to P6.qiao.baidu.com. The less responsive or slowest element that took the longest time to load (19.9 sec) belongs to the original domain Tsinghua-lx.com.
Page size can be reduced by 318.9 kB (20%)
1.6 MB
1.3 MB
In fact, the total size of Tsinghua-lx.com main page is 1.6 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 45% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.
Potential reduce by 50.4 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 12.9 kB, which is 21% 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 50.4 kB or 83% of the original size.
Potential reduce by 126.1 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. Tsinghua Lx images are well optimized though.
Potential reduce by 85.4 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 85.4 kB or 69% of the original size.
Potential reduce by 56.9 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. Tsinghua-lx.com needs all CSS files to be minified and compressed as it can save up to 56.9 kB or 81% of the original size.
Number of requests can be reduced by 20 (24%)
83
63
The browser has sent 83 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tsinghua Lx. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
tsinghua-lx.com
2525 ms
www.tsinghua-lx.com
5971 ms
common.css
1626 ms
css.css
1647 ms
jquery.min.js
6142 ms
jquery-powerSwitch.js
14641 ms
jquery.textSlider.js
1046 ms
unslider.min.js
1622 ms
jquery.imageScroller.js
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logo.png
3513 ms
tel.png
2677 ms
line_v.png
785 ms
btn_contact.jpg
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sub4.jpg
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tt1.png
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more-student.jpg
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more.png
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h.js
1380 ms
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b.js
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bsl.js
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subbanner.png
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Enter.php
688 ms
main_icon_invite_mess_api.js
509 ms
main.css
589 ms
fix.css
506 ms
version.js
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bg_arrow1.png
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smenu.png
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m-webim-lite.css
256 ms
main.js
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bg_sub1.jpg
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attack.gif
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Refresh.php
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stat.gif
252 ms
invitebg.jpg
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icon.png
262 ms
icon_close.png
394 ms
iconbg.jpg
1464 ms
main.css
659 ms
bg_1.png
6603 ms
bg_tt.png
6986 ms
arrow2.png
7168 ms
bg_tt2.png
7332 ms
pn.png
6982 ms
arrow3.png
7262 ms
01_big.jpg
257 ms
btn.png
268 ms
Refresh.php
439 ms
Refresh.php
499 ms
Refresh.php
446 ms
tsinghua-lx.com accessibility score
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
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
tsinghua-lx.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
tsinghua-lx.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
robots.txt is not valid
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
Document uses legible font sizes
Tap targets are not sized appropriately
ZH
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tsinghua-lx.com 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 Tsinghua-lx.com 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.
tsinghua-lx.com
Open Graph description is not detected on the main page of Tsinghua Lx. 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: