19.4 sec in total
1.3 sec
17.7 sec
433 ms
Visit pku.edu.cn now to see the best up-to-date Pku content for China and also check out these interesting facts you probably never knew about pku.edu.cn
北京大学
Visit pku.edu.cnWe analyzed Pku.edu.cn page load time and found that the first response time was 1.3 sec and then it took 18.1 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.
pku.edu.cn performance score
name
value
score
weighting
Value4.2 s
20/100
10%
Value18.4 s
0/100
25%
Value14.0 s
1/100
10%
Value1,280 ms
18/100
30%
Value0.228
55/100
15%
Value21.8 s
1/100
10%
1312 ms
683 ms
695 ms
690 ms
464 ms
Our browser made a total of 115 requests to load all elements on the main page. We found that 92% of them (106 requests) were addressed to the original Pku.edu.cn, 8% (9 requests) were made to Bdimg.share.baidu.com. The less responsive or slowest element that took the longest time to load (15.1 sec) belongs to the original domain Pku.edu.cn.
Page size can be reduced by 1.4 MB (17%)
8.3 MB
6.9 MB
In fact, the total size of Pku.edu.cn main page is 8.3 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 6.8 MB which makes up the majority of the site volume.
Potential reduce by 44.6 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 6.3 kB, which is 11% 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 44.6 kB or 75% of the original size.
Potential reduce by 351.8 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. Pku images are well optimized though.
Potential reduce by 514.9 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 514.9 kB or 67% of the original size.
Potential reduce by 484.7 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. Pku.edu.cn needs all CSS files to be minified and compressed as it can save up to 484.7 kB or 81% of the original size.
Number of requests can be reduced by 24 (22%)
110
86
The browser has sent 110 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pku. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
pku.edu.cn
1312 ms
indexi.css
683 ms
basei.css
695 ms
index.css
690 ms
thuicon.css
464 ms
mmenu.css
460 ms
jq.js
1637 ms
comm.js
699 ms
jquery.easing-1.3.js
700 ms
jquery.iosslider.js
1602 ms
visualMacth.js
919 ms
pku.css
918 ms
pku.js
931 ms
slider.js
930 ms
responsiveslides.min.js
892 ms
jquery.easing-1.3.js
699 ms
jquery.iosslider.js
1455 ms
banner.js
716 ms
bg.jpg
256 ms
mnav.png
254 ms
pkucloud1h100.png
257 ms
pkulogo_white.png
245 ms
channel_about.jpg
737 ms
channel_admissions.jpg
474 ms
channel_academic.jpg
741 ms
channel_education.jpg
760 ms
channel_research.jpg
505 ms
channel_collaboration.jpg
752 ms
channel_life.jpg
724 ms
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4123 ms
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5111 ms
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15136 ms
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3361 ms
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6597 ms
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6483 ms
rw_icon.jpg
3649 ms
yay_icon.jpg
3910 ms
xs_icon.jpg
4151 ms
maozedong.png
4434 ms
zt_icon.jpg
4444 ms
zt_img3.jpg
4691 ms
zt_img1.jpg
4699 ms
zt_img.jpg
4923 ms
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4939 ms
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5162 ms
fw_img.jpg
5178 ms
rc_icon.png
5375 ms
fw_img1.jpg
5417 ms
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5482 ms
fw_img2.jpg
5602 ms
xn_icon.png
5647 ms
fw_img3.jpg
5710 ms
jz_icon.png
5779 ms
share.js
2349 ms
glyphicons-halflings-regular.woff
5645 ms
newsLeft.xml
5737 ms
newsCenter.xml
5818 ms
newsRight.xml
5869 ms
notice_num.dat
5912 ms
newsJXKY.xml
5823 ms
newsMTBD.xml
5850 ms
newsRWFC.xml
5727 ms
newsJJXY.xml
5794 ms
newsZTWZ.xml
5845 ms
recentList.xml
5929 ms
fw_img4.jpg
5964 ms
share_api.js
309 ms
share_view.js
584 ms
tangram.js
1999 ms
api_base.js
581 ms
view_base.js
358 ms
gk_icon.png
3391 ms
fw_img5.jpg
3174 ms
mh_icon.png
2914 ms
fw_img9.jpg
2791 ms
xx_icon.png
2820 ms
fw_img6.jpg
2544 ms
lj_icon.png
2642 ms
pkuweixin.png
2403 ms
pkuyinxin.png
2452 ms
partners.js
298 ms
share_style0_32.css
279 ms
pkualumni.png
2292 ms
pkuinfosvc.png
2277 ms
pkuxinqingnian.png
2226 ms
pkubbs.png
2172 ms
fw_bg.jpg
2690 ms
selector-shadow.png
2089 ms
arrow_left.png
2026 ms
logger.js
279 ms
arrow_right.png
2081 ms
a_bg.jpg
1963 ms
line.jpg
2037 ms
rw_img.jpg
1988 ms
yw_img.jpg
1970 ms
xs_img.jpg
1917 ms
f_bg.jpg
1943 ms
share01.png
1896 ms
share02.png
1945 ms
share08.png
1867 ms
share03.png
1845 ms
share04.png
1972 ms
share05.png
2482 ms
share06.png
1891 ms
share07.png
2543 ms
lijidong.png
1838 ms
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2435 ms
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1933 ms
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2174 ms
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2335 ms
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2581 ms
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3602 ms
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2570 ms
64006a60c64a1854b52731.jpg
2905 ms
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2385 ms
pku.edu.cn accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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
<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
Image elements do not have [alt] attributes
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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Some elements have a [tabindex] value greater than 0
pku.edu.cn 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
General
Impact
Issue
Detected JavaScript libraries
pku.edu.cn SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
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
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 Pku.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 Pku.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.
pku.edu.cn
Open Graph description is not detected on the main page of Pku. 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: