11.8 sec in total
3.6 sec
7.8 sec
319 ms
Welcome to grawww.nju.edu.cn homepage info - get ready to check Grawww Nju best content for China right away, or after learning these important things about grawww.nju.edu.cn
南京大学研究生院
Visit grawww.nju.edu.cnWe analyzed Grawww.nju.edu.cn page load time and found that the first response time was 3.6 sec and then it took 8.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
grawww.nju.edu.cn performance score
name
value
score
weighting
Value3.8 s
28/100
10%
Value7.6 s
3/100
25%
Value11.8 s
4/100
10%
Value80 ms
99/100
30%
Value0.074
95/100
15%
Value4.1 s
87/100
10%
3640 ms
595 ms
593 ms
887 ms
1173 ms
Our browser made a total of 38 requests to load all elements on the main page. We found that all of those requests were addressed to Grawww.nju.edu.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (3.6 sec) belongs to the original domain Grawww.nju.edu.cn.
Page size can be reduced by 294.4 kB (25%)
1.2 MB
885.2 kB
In fact, the total size of Grawww.nju.edu.cn main page is 1.2 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. 15% of websites need less resources to load. Images take 869.7 kB which makes up the majority of the site volume.
Potential reduce by 65.0 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 16.8 kB, which is 23% 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 65.0 kB or 90% of the original size.
Potential reduce by 44.0 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. Grawww Nju images are well optimized though.
Potential reduce by 92.1 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 92.1 kB or 70% of the original size.
Potential reduce by 93.3 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. Grawww.nju.edu.cn needs all CSS files to be minified and compressed as it can save up to 93.3 kB or 88% of the original size.
Number of requests can be reduced by 19 (51%)
37
18
The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Grawww Nju. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
grawww.nju.edu.cn
3640 ms
system.css
595 ms
system.css
593 ms
default.css
887 ms
simplenews.css
1173 ms
picbase2.css
887 ms
datepicker.css
1192 ms
sudyNav.css
885 ms
jquery.min.js
2642 ms
jquery.sudy.wp.visitcount.js
1179 ms
jquery.datepicker.js
2082 ms
datepicker_lang_HK.js
1464 ms
jquery.sudyNav.js
1482 ms
picbase2.js
1776 ms
style.css
2045 ms
system_editor.css
1471 ms
head.jpg
1765 ms
navbar.png
297 ms
navbar_line.png
299 ms
bg.png
300 ms
2bbc85c4-d8d3-4ee7-80e2-2bd18d6ee370.jpg
2052 ms
afaafa9f-1178-4271-85c2-61c10f840ba6.jpg
2954 ms
abcb0a64-9a7c-4e8c-bf72-7858827df1c6.jpg
2452 ms
bsxzdc.jpg
1175 ms
loading.gif
564 ms
left_title.png
1446 ms
system_li2.png
1449 ms
system_li.gif
1742 ms
search.gif
1745 ms
xn_title.png
2036 ms
xw_title.png
2320 ms
right_tz.png
1945 ms
li.gif
2227 ms
right_bs.png
2241 ms
rotator-black.png
2518 ms
pause-black.png
2529 ms
right-arrow.png
2538 ms
left-arrow.png
2542 ms
grawww.nju.edu.cn accessibility score
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
Form elements do not have associated labels
grawww.nju.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
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
grawww.nju.edu.cn SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
ZH
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Grawww.nju.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 Grawww.nju.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.
grawww.nju.edu.cn
Open Graph description is not detected on the main page of Grawww Nju. 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: