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51pass.cn screenshot

Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

51pass.cn

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Page Load Speed

11 sec in total

First Response

843 ms

Resources Loaded

8.8 sec

Page Rendered

1.4 sec

51pass.cn screenshot

About Website

Welcome to 51pass.cn homepage info - get ready to check 51 Pass best content for China right away, or after learning these important things about 51pass.cn

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Visit 51pass.cn

Key Findings

We analyzed 51pass.cn page load time and found that the first response time was 843 ms and then it took 10.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

51pass.cn performance score

0

Network Requests Diagram

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.

Page Optimization Overview & Recommendations

Page size can be reduced by 985.8 kB (36%)

Content Size

2.8 MB

After Optimization

1.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

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 Breakdown

Number of requests can be reduced by 14 (34%)

Requests Now

41

After Optimization

27

  • AJAX
  • Images
  • JavaScript
  • CSS

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.

Network Requests Diagram

51pass.cn

51pass.cn

843 ms

cj.51pass.cn

cj.51pass.cn

1046 ms

bootstrap.css

bootstrap.css

243 ms

main.css

main.css

1827 ms

main-v2.css

main-v2.css

698 ms

main-red.css

main-red.css

471 ms

main-red.css

main-red.css

476 ms

translator.min.js

translator.min.js

464 ms

zh_CN.js

zh_CN.js

484 ms

base.js

base.js

1178 ms

common.js

common.js

1604 ms

main.js

main.js

964 ms

main.js

main.js

720 ms

echo-js.js

echo-js.js

1583 ms

main.js

main.js

961 ms

index.js

index.js

1205 ms

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184252cc0f4d514853.png

1205 ms

avatar.png

avatar.png

1403 ms

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block_picture_1602323134.jpg

2154 ms

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block_picture_1602323128.jpg

2159 ms

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block_picture_1598510262.jpg

2692 ms

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block_picture_1598510270.jpg

4111 ms

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block_picture_1598510275.jpg

3879 ms

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block_picture_1526292651.jpg

2153 ms

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block_picture_1539342068.png

2158 ms

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block_picture_1526292856.jpg

2674 ms

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block_picture_1599310872.jpg

2693 ms

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lazyload_course.png

2693 ms

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172203bf1cd7844129.png

3855 ms

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172234a1921a930310.png

4157 ms

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1722455e7865347486.png

4014 ms

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17225933dd24691872.png

5929 ms

block_picture_1505445996.jpeg

block_picture_1505445996.jpeg

6884 ms

hm.js

hm.js

2013 ms

es-icon.woff

es-icon.woff

4005 ms

piwik.js

piwik.js

2051 ms

sample

sample

1758 ms

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094013d1ebdc562590.jpg

1670 ms

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183157d4d5a7312281.png

1726 ms

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0938499d70b4395260.jpg

2916 ms

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09405021f7cc781796.jpg

1958 ms

093954a2a330777210.jpg

093954a2a330777210.jpg

2224 ms

hm.gif

hm.gif

359 ms

piwik.php

piwik.php

457 ms

SEO Factors

51pass.cn SEO score

0

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

51pass.cn

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: