Analyze 中国南方电网


Page load speed analysis

  • 58/100

    Normal result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    3.1 sec

  • Resources loaded

    30.9 sec

  • Page rendered

    247 ms

  • Total page load time

    34.3 sec

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We analyzed page load time and found that the first response time was 3.1 sec and then it took 31.2 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Page optimization

  • HTML 37.8 kB
    Images 258.7 kB
    Javascripts 59.9 kB
    CSS 25.9 kB

    In fact, the total size of main page is 382.2 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. 20% of websites need less resources to load. Images take 258.7 kB which makes up the majority of the site volume.

    • Original 37.8 kB
    • After minification 31.2 kB
    • After compression 7.9 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 6.6 kB, which is 17% 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 29.9 kB or 79% of the original size.

    • Original 258.7 kB
    • After optimization 220.2 kB

    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. Obviously, Csg needs image optimization as it can save up to 38.4 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

    • Original 59.9 kB
    • After minification 57.9 kB
    • After compression 25.0 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 34.8 kB or 58% of the original size.

    • Original 25.9 kB
    • After minification 22.5 kB
    • After compression 5.1 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 20.7 kB or 80% of the original size.

Network requests diagram

  • cn-v1-style.css
  • cn-v1-index.css
  • flexslider.css
  • jquery.min.js
  • jsCore.js
  • jquery.flexslider.min.js
  • languages.js
  • logo.png
  • cn-v1-icon-search.png
  • W020160408366662477734.jpg
  • W020160406339697303053.jpg
  • W020160401753390290246.jpg
  • cn-v1-more.png
  • W020151224278417744124.jpg
  • W020151231009027453835.png
  • W020151231009249173715.png
  • W020151231009420177791.png
  • W020151231009621594369.png
  • 12398call.png
  • W020151224542392865222.jpg
  • cn-v1-close.png
  • W020151224655389961413.jpg
  • W020151224661535329268.png
  • W020151224529650239169.png
  • W020151224580308151311.png
  • W020151224661700755808.png
  • W020151224661862401592.png
  • cn-v1-icon1.png
  • cn-v1-icon2.png
  • cn-v1-icon4.png
  • cn-v1-icon5.png
  • cn-v1-icon6.png
  • cn-v1-icon8.png
  • pp1.jpg
  • pp2.jpg
  • pp3.jpg
  • pp4.jpg
  • W020151202589604454909.png
  • W020151202589181187774.png
  • cn-v1-search-bg.png
  • loading.gif
  • W020151228610057301189.jpg
  • W020151228663662216641.jpg
  • dot.png
  • cn-v1-i1.png
  • cn-v1-map.png
  • h.js

Our browser made a total of 48 requests to load all elements on the main page. We found that 98% of them (47 requests) were addressed to the original, 2% (1 request) were made to The less responsive or slowest element that took the longest time to load (19.6 sec) belongs to the original domain

Additional info on


The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Csg. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 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 2 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.

Normal result

IP Trace

DNS records

Type Host Target/ip TTL Other
NS 86400
NS 86400

600 Mname:
Serial: 1
Refresh: 3600
Retry: 1200
Expire: 3600
Minimum-ttl: 600
MX 600 Pri: 10

600 Txt: v=spf1 ip4: ip4: ip4: ip4: ip4: -all

Language and encoding

Good result


ZH zh language flag


ZH zh 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. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that 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.

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 99.5% of all visits is China. It’s good for that their server is also located in China, as that enables the majority of their visitors to benefit from a much faster page load time.

Good result

Poor result

Social Sharing Optimization

Open Graph description is not detected on the main page of Csg. 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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