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datavlab.org: 首页 - DataVlab.org

Page load speed analysis

  • 61/100

    Normal result
  • 7

    Successful tests
  • 1

    Failed test
  • First response

    1.1 sec

  • Resources loaded

    4.4 sec

  • Page rendered

    282 ms

  • Total page load time

    5.8 sec

Click here to check amazing Data Vlab content for China. Otherwise, check out these important facts you probably never knew about datavlab.org

We analyzed Datavlab.org page load time and found that the first response time was 1.1 sec and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Page optimization

  • HTML 11.6 kB
    Images 1.9 MB
    Javascripts 53.1 kB
    CSS 14.4 kB

    In fact, the total size of Datavlab.org main page is 1.9 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. 20% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.

    • Original 11.6 kB
    • After minification 9.6 kB
    • After compression 3.2 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 1.9 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 8.4 kB or 73% of the original size.

    • Original 1.9 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. Obviously, Data Vlab needs image optimization as it can save up to 517.4 kB or 28% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

    • Original 53.1 kB
    • After minification 50.9 kB
    • After compression 17.7 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 35.5 kB or 67% of the original size.

    • Original 14.4 kB
    • After minification 13.2 kB
    • After compression 3.0 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. Datavlab.org needs all CSS files to be minified and compressed as it can save up to 11.4 kB or 79% of the original size.

Network requests diagram

  • datavlab.org
  • style.css
  • jquery-1.7.2.min.js
  • easing.js
  • script.js
  • 44914
  • ga.js
  • pageBG2.gif
  • logo.png
  • searchBar.gif
  • dataVBG.gif
  • post.png
  • dataVPX.gif
  • home_line.jpg
  • home_rightsider01.png
  • home_rightsider02.png
  • home_rightsider03.png
  • QQ20140925-9.png
  • 81.gif
  • u33048396471623076783fm23gp01.jpg
  • QQ20140730-4.png
  • 9-3-05.png
  • 88d45181jw1ehi7h6y99og20a0082dtq3.gif
  • cases.jpg
  • banner_09_small.jpg
  • __utm.gif
  • track_proxy

Our browser made a total of 27 requests to load all elements on the main page. We found that 81% of them (22 requests) were addressed to the original Datavlab.org, 7% (2 requests) were made to Clicki.cn and 7% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Datavlab.org.

Additional info on datavlab.org

Requests

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Data Vlab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

5

Javascripts

20

Images

1

CSS

26

All

Possible request optimization

1

Javascripts

20

Images

1

CSS

4

Optimized

22

All

Good result

IP address

This IP address is dedicated to Datavlab.org. This is the best domain hosting practice .

Good result

IP Trace

DNS records

Type Host Target/ip TTL Other
A

datavlab.org

106.186.18.223 3600
NS

datavlab.org

dns9.hichina.com 86400
NS

datavlab.org

dns10.hichina.com 86400
SOA

datavlab.org

600 Mname: dns9.hichina.com
Rname: hostmaster.hichina.com
Serial: 1
Refresh: 3600
Retry: 1200
Expire: 3600
Minimum-ttl: 600

Language and encoding

Good result

Language

ZH zh language flag

Detected

ZH zh language flag

Claimed

Encoding

UTF-8

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Datavlab.org 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 Datavlab.org 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

Datavlab.org 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 100% of all visits is China. Unfortunately, we cannot track the location of Datavlab.org 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 Data Vlab. 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:

datavlab.org

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