Analyze Air quality index map ,Air quality index beijing,Air quality index by city, real-time air quality index, air quality rankings , PM2.5 PM10 AQI

China, the United States, Mexico, Beijing, Shanghai, Guangzhou urban air quality index query, the query of air contaminants, urban air quality rankings, air quality monitoring data query point, air qu...

Page load speed analysis

  • 67/100

    Normal result
  • 7

    Successful tests
  • 1

    Failed test
  • First response

    912 ms

  • Resources loaded

    2.3 sec

  • Page rendered

    435 ms

  • Total page load time

    3.7 sec

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We analyzed page load time and found that the first response time was 912 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Page optimization

  • HTML 30.9 kB
    Images 0 B
    Javascripts 564.5 kB
    CSS 148.3 kB

    In fact, the total size of main page is 743.7 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. 40% of websites need less resources to load. Javascripts take 564.5 kB which makes up the majority of the site volume.

    • Original 30.9 kB
    • After minification 26.6 kB
    • After compression 6.5 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 4.2 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 24.4 kB or 79% of the original size.

    • Original 564.5 kB
    • After minification 563.1 kB
    • After compression 172.7 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 391.8 kB or 69% of the original size.

    • Original 148.3 kB
    • After minification 148.2 kB
    • After compression 24.1 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 124.2 kB or 84% of the original size.

Network requests diagram

  • A.bootstrap.min.css+bootstrap-theme.min.css+theme.css,
  • bootstrap.min.js+aqi.js.pagespeed.jc.hyNGLlEsyH.js
  • A.leaflet.css+leaflet.label.css,
  • adsbygoogle.js
  • docs.min.js
  • serial.js+themes,_none.js.pagespeed.jc.KI4Wv-pA5P.js
  • addthis_widget.js
  • analytics.js
  • xapple-touch-icon-57.png.pagespeed.ic.8lIV1VpR2r.png
  • 40xNxunited_states_of_america_usa.png.pagespeed.ic.o73LWTLVdB.png
  • china.png.pagespeed.ce.KMYUr1z58H.png
  • italy.png.pagespeed.ce.Gp1Zeb8C2U.png
  • france.png.pagespeed.ce.qVhE1Af3Lu.png
  • germany.png.pagespeed.ce.ad2Jyc7hu-.png
  • 40xNxjapan.png.pagespeed.ic.rp_DKEPvqA.png
  • 40xNxsouth_korea.png.pagespeed.ic.d0AGxlqRbx.png
  • 40xNxrussian_federation.png.pagespeed.ic.6dYT_VIrt8.png
  • taiwan.png.pagespeed.ce.4gS0qHw-UY.png
  • xemail2.png.pagespeed.ic.QpIbHE9JeI.png
  • collect

Our browser made a total of 25 requests to load all elements on the main page. We found that 84% of them (21 requests) were addressed to the original, 8% (2 requests) were made to and 4% (1 request) were made to The less responsive or slowest element that took the longest time to load (1000 ms) belongs to the original domain

Additional info on


The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of AQI Db. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.











Possible request optimization













Good 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

Language and encoding

Good result


EN en language flag


EN en 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 English 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

The server of is located in Singapore, but, unfortunately, we cannot identify the countries where the visitors come from and thus it’s impossible to define if the distance 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 AQI Db. 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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