Page load speed analysis

  • 56/100

    Normal result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    2.5 sec

  • Resources loaded

    47.9 sec

  • Page rendered

    644 ms

  • Total page load time

    51.1 sec

Visit now to see the best up-to-date Zuber 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 2.5 sec and then it took 48.6 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 38.3 kB
    Images 69.8 kB
    Javascripts 473.3 kB
    CSS 202.9 kB

    In fact, the total size of main page is 784.2 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. 35% of websites need less resources to load. Javascripts take 473.3 kB which makes up the majority of the site volume.

    • Original 38.3 kB
    • After minification 32.4 kB
    • After compression 5.8 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 5.9 kB, which is 15% 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 32.4 kB or 85% of the original size.

    • Original 69.8 kB
    • After optimization 10.5 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, Zuber needs image optimization as it can save up to 59.3 kB or 85% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

    • Original 473.3 kB
    • After minification 470.7 kB
    • After compression 152.2 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 321.1 kB or 68% of the original size.

    • Original 202.9 kB
    • After minification 191.3 kB
    • After compression 33.6 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 169.3 kB or 83% of the original size.

Network requests diagram

  • roomsearch
  • bootstrap.min.css
  • zuber.min.css
  • style.css
  • railway.css
  • mobile.css
  • jquery.min.js
  • angular.min.js
  • angular-ui-router.min.js
  • lodash.min.js
  • restangular.min.js
  • zuber.lib.js
  • bootstrap.min.js
  • api
  • ngSocket.js
  • angular-cookies.min.js
  • qrcode.min.js
  • jweixin-1.0.0.js
  • zuber.min.3.1.0.js
  • getscript
  • hm.js
  • terminal
  • layout.html
  • blank.gif
  • getmodules
  • hm.gif
  • roomsearch.html
  • header.html
  • header-mobile.html
  • footer.html
  • card.html
  • railway
  • search
  • glyphicons-halflings-regular.woff
  • blank.gif
  • openhand.cur
  • getmodules
  • logo.png
  • home.png
  • user.png
  • message.png
  • blank.gif
  • railway
  • terminal
  • search
  • 0
  • 56972ed569d1a.jpg
  • 0
  • 0
  • 5703c87ad6e4a.jpg
  • 5703b3d6f160b.jpg
  • 5707cb2a8efb4.jpg
  • 55c9a0755a5f5.jpg
  • 5707cafb42e4c.jpg
  • 5705fb1acaea0.jpg

Our browser made a total of 55 requests to load all elements on the main page. We found that 25% of them (14 requests) were addressed to the original, 25% (14 requests) were made to and 13% (7 requests) were made to The less responsive or slowest element that took the longest time to load (20.4 sec) relates to the external source

Additional info on


The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zuber. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.











Possible request optimization













Normal result

IP address

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

Normal result

IP Trace

DNS records

Type Host Target/ip TTL Other
A 57
NS 60
NS 60

60 Mname:
Serial: 2017121216
Refresh: 3600
Retry: 1200
Expire: 86400
Minimum-ttl: 360
MX 60 Pri: 10

Language and encoding

Normal result


ZH zh 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. Our service has detected that Chinese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. 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 95.5% 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 Zuber. 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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