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Visit 51pass.cn

51pass.cn

843 ms

cj.51pass.cn

1046 ms

bootstrap.css

243 ms

main.css

1827 ms

main-v2.css

698 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original 51pass.cn, 89% (39 requests) were made to Cj.51pass.cn and 5% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (6.9 sec) relates to the external source Cj.51pass.cn.

Content Size

2.8 MB

After Optimization

1.8 MB

In fact, the total size of 51pass.cn main page is 2.8 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. 60% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 52.5 kB

Original 60.6 kB
After minification 35.7 kB
After compression 8.1 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 24.9 kB, which is 41% 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 52.5 kB or 87% of the original size.

Image Optimization

-4%

Potential reduce by 62.5 kB

Original 1.6 MB
After minification 1.6 MB

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 Pass images are well optimized though.

JavaScript Optimization

-78%

Potential reduce by 179.1 kB

Original 230.4 kB
After minification 225.0 kB
After compression 51.4 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 179.1 kB or 78% of the original size.

CSS Optimization

-81%

Potential reduce by 691.7 kB

Original 858.6 kB
After minification 857.6 kB
After compression 166.9 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. 51pass.cn needs all CSS files to be minified and compressed as it can save up to 691.7 kB or 81% of the original size.

Requests Now

After Optimization

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Pass. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Language and Encoding

Language Detected

N/A

Language Claimed

N/A

Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 51pass.cn can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that 51pass.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

Open Graph description is not detected on the main page of 51 Pass. 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: