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Page load speed analysis

  • 45/100

    Normal result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    16.9 sec

  • Resources loaded

    23.5 sec

  • Page rendered

    851 ms

  • Total page load time

    41.2 sec

Visit now to see the best up-to-date 51 Test content for China and also check out these interesting facts you probably never knew about

We analyzed page load time and found that the first response time was 16.9 sec and then it took 24.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Page optimization

  • HTML 209.2 kB
    Images 1.4 MB
    Javascripts 738.8 kB
    CSS 895.7 kB

    In fact, the total size of main page is 3.3 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. 35% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

    • Original 209.2 kB
    • After minification 180.9 kB
    • After compression 28.4 kB

    HTML optimization

    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 28.3 kB, which is 14% 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 180.8 kB or 86% of the original size.

    • Original 1.4 MB
    • After optimization 1.3 MB

    Image optimization

    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 Test images are well optimized though.

    • Original 738.8 kB
    • After minification 732.6 kB
    • After compression 222.2 kB

    JavaScript optimization

    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 516.7 kB or 70% of the original size.

    • Original 895.7 kB
    • After minification 441.7 kB
    • After compression 69.8 kB

    CSS optimization

    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. needs all CSS files to be minified and compressed as it can save up to 825.9 kB or 92% of the original size.

Network requests diagram

  • style.css
  • link.css
  • jquery-1.4a2.min.js
  • jquery.KinSlideshow-1.2.1.min.js
  • common_index.js
  • s.js
  • cpabm.jpg
  • 20104221841229142.jpg
  • zhangf540820111218112066802.jpg
  • header-container-bg.jpg
  • button_login.gif
  • button_reg.gif
  • quanbukaoshi.jpg
  • 51testlogo.gif
  • page-weather-bg.jpg
  • listen.gif
  • baoban.gif
  • goushu.gif
  • student.gif
  • ziliao.gif
  • answer.gif
  • 1dui1_234x60.jpg
  • ppzq.jpg
  • zq2.jpg
  • chinaacc_logo.jpg
  • zq6.jpg
  • htexam.jpg
  • 128x48logo.jpg
  • zq5.jpg
  • wsrcw.jpg
  • kycj.jpg
  • cetbm.jpg
  • zcwyzt.jpg
  • gwy1-234x60.jpg
  • zikao.jpg
  • zaojiashi.jpg
  • gwy1_960x90.jpg
  • zcwy_960x80.jpg
  • dcpm
  • titlebg.jpg
  • kstxbg1.jpg
  • point26.jpg
  • kcml.jpg
  • jtbg_new.jpg
  • jianzaoshi1.jpg
  • c.js
  • dcpm
  • dcpm
  • hzhb.jpg
  • adx.php
  • reduce_bd-logo1_oper.png
  • yqlj.jpg
  • footbg.jpg
  • cm.js
  • c.php
  • stat.php
  • stat.php
  • shell_v2.js
  • stat.htm
  • core.php
  • stat.htm
  • core.php
  • closefeedback.min.js
  • bds_s_v2.js
  • bdsstyle.css
  • r2.gif
  • reduce_promotion_oper.png
  • bd_logo.png
  • bg_rb.png
  • stat.htm
  • core.php
  • 9.gif
  • h.js
  • s.js
  • logger.js
  • hm.gif
  • app.gif

Our browser made a total of 78 requests to load all elements on the main page. We found that 58% of them (45 requests) were addressed to the original, 9% (7 requests) were made to and 6% (5 requests) were made to The less responsive or slowest element that took the longest time to load (16.9 sec) belongs to the original domain

Additional info on


The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Test. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and as a result speed up the page load time.











Possible request optimization













Normal result

IP address uses IP address which is currently shared with 4 other domains. The more sites share the same IP address, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Poor result

IP Trace

DNS records

Type Host Target/ip TTL Other
A 300
A 300

300 Ipv6: 2606:4700:302c::a29f:e394

300 Ipv6: 2606:4700:302c::a29f:e294

Language and encoding

Normal result


N/A  language flag


N/A  language flag





Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 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 main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

HTTPS certificate

SSL Certificate has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Normal result

Visitor World Map

Country of origin for 95.6% of all visits is China. Unfortunately, we cannot track the location of server and thus cannot define if the distance between their user base and server can potentially affect the page load time

Good result

Poor result

Social Sharing Optimization

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

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