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51tongji.net

846 ms

common.css

742 ms

home.css

1608 ms

M.js

736 ms

jquery-1.js

1150 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 72% of them (49 requests) were addressed to the original 51tongji.net, 6% (4 requests) were made to Apps.qq.com and 4% (3 requests) were made to Yun.51tongji.cn. The less responsive or slowest element that took the longest time to load (8.5 sec) relates to the external source Cnzz.mmstat.com.

Content Size

802.5 kB

After Optimization

530.9 kB

In fact, the total size of 51tongji.net main page is 802.5 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. 30% of websites need less resources to load. Images take 452.1 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 27.6 kB

Original 35.9 kB
After minification 28.9 kB
After compression 8.3 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 7.0 kB, which is 20% 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 27.6 kB or 77% of the original size.

Image Optimization

-7%

Potential reduce by 32.2 kB

Original 452.1 kB
After minification 420.0 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. 51 Tongji images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 179.4 kB

Original 272.9 kB
After minification 266.7 kB
After compression 93.5 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 179.4 kB or 66% of the original size.

CSS Optimization

-78%

Potential reduce by 32.4 kB

Original 41.6 kB
After minification 41.2 kB
After compression 9.2 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. 51tongji.net needs all CSS files to be minified and compressed as it can save up to 32.4 kB or 78% of the original size.

Requests Now

After Optimization

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Tongji. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.