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beijing-air.com screenshot

Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

beijing-air.com

北京空气质量报告 - 北京空气污染指数、PM2.5实时数据查询

Page Load Speed

25.3 sec in total

First Response

1.9 sec

Resources Loaded

23.1 sec

Page Rendered

325 ms

beijing-air.com screenshot

About Website

Visit beijing-air.com now to see the best up-to-date Beijing Air content for China and also check out these interesting facts you probably never knew about beijing-air.com

北京空气质量实时报告，北京空气污染指数、PM2.5数据分别来自于北京市环保中心和美国大使馆。北京市环保监测中心数据每小时更新，美国大使馆数据每小时更新。

Visit beijing-air.com

Key Findings

We analyzed Beijing-air.com page load time and found that the first response time was 1.9 sec and then it took 23.4 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 4 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

beijing-air.com performance score

0

Network Requests Diagram

beijing-air.com

1853 ms

mdevice.js

634 ms

main_style_wide_c.css

1061 ms

adsbygoogle.js

157 ms

stat.php

1759 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 31% of them (16 requests) were addressed to the original Beijing-air.com, 14% (7 requests) were made to Pagead2.googlesyndication.com and 10% (5 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (20.2 sec) belongs to the original domain Beijing-air.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 91.1 kB (20%)

Content Size

466.5 kB

After Optimization

375.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Beijing-air.com main page is 466.5 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. 30% of websites need less resources to load. Images take 329.5 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 18.8 kB

  • Original 25.0 kB
  • After minification 20.9 kB
  • After compression 6.2 kB

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 4.1 kB, which is 16% 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 18.8 kB or 75% of the original size.

Image Optimization

-16%

Potential reduce by 51.4 kB

  • Original 329.5 kB
  • After minification 278.0 kB

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, Beijing Air needs image optimization as it can save up to 51.4 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-10%

Potential reduce by 9.6 kB

  • Original 98.5 kB
  • After minification 98.2 kB
  • After compression 88.9 kB

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. This website has mostly compressed JavaScripts.

CSS Optimization

-83%

Potential reduce by 11.2 kB

  • Original 13.5 kB
  • After minification 10.7 kB
  • After compression 2.3 kB

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. Beijing-air.com needs all CSS files to be minified and compressed as it can save up to 11.2 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (50%)

Requests Now

44

After Optimization

22

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Beijing Air. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

beijing-air.com

beijing-air.com

1853 ms

mdevice.js

mdevice.js

634 ms

main_style_wide_c.css

main_style_wide_c.css

1061 ms

adsbygoogle.js

adsbygoogle.js

157 ms

stat.php

stat.php

1759 ms

2016-04-09-00_w1_ac595207-7324-44a3-b035-12d4bc985661.jpg

2016-04-09-00_w1_ac595207-7324-44a3-b035-12d4bc985661.jpg

20229 ms

templatemo_main_bg.jpg

templatemo_main_bg.jpg

540 ms

t_image_01.jpg

t_image_01.jpg

486 ms

templatemo_readmore_blue.jpg

templatemo_readmore_blue.jpg

9879 ms

t_image_02.jpg

t_image_02.jpg

2983 ms

time.png

time.png

20142 ms

j15.png

j15.png

20143 ms

j03.jpg

j03.jpg

20143 ms

j17.jpg

j17.jpg

6029 ms

j10.jpg

j10.jpg

4920 ms

j04.jpg

j04.jpg

9177 ms

2016-04-09-00_w2_ac595207-7324-44a3-b035-12d4bc985661.jpg

2016-04-09-00_w2_ac595207-7324-44a3-b035-12d4bc985661.jpg

14566 ms

weiboshare.html

weiboshare.html

1172 ms

weiboshare.html

weiboshare.html

1146 ms

ca-pub-3496314023280857.js

ca-pub-3496314023280857.js

409 ms

zrt_lookup.html

zrt_lookup.html

654 ms

show_ads_impl.js

show_ads_impl.js

419 ms

templatemo_readmore_green.jpg

templatemo_readmore_green.jpg

7420 ms

stat.htm

stat.htm

1376 ms

core.php

core.php

890 ms

ads

ads

632 ms

osd.js

osd.js

421 ms

ads

ads

674 ms

9339907000668641505

9339907000668641505

438 ms

abg.js

abg.js

451 ms

m_js_controller.js

m_js_controller.js

479 ms

share_btn_iframe.js

share_btn_iframe.js

351 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

340 ms

ga.js

ga.js

152 ms

weiboshare.html

weiboshare.html

1898 ms

weiboshare.html

weiboshare.html

1898 ms

__utm.gif

__utm.gif

20 ms

collect

collect

275 ms

x_button_blue2.png

x_button_blue2.png

185 ms

s

s

180 ms

favicon

favicon

213 ms

nessie_icon_thin_arrow_short_white.png

nessie_icon_thin_arrow_short_white.png

174 ms

9aKOW9kHIBrJTB9ONj-e1oyTZuOGlgCE-J5p-KupNmo.js

9aKOW9kHIBrJTB9ONj-e1oyTZuOGlgCE-J5p-KupNmo.js

37 ms

activeview

activeview

89 ms

activeview

activeview

90 ms

app_iframe.css

app_iframe.css

1536 ms

share_button.js

share_button.js

1116 ms

btn_trans.gif

btn_trans.gif

23 ms

transparent.gif

transparent.gif

3870 ms

tmp.gif

tmp.gif

1091 ms

tmp.gif

tmp.gif

410 ms

SEO Factors

beijing-air.com SEO score

0

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Beijing-air.com 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 Beijing-air.com 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.

Social Sharing Optimization

beijing-air.com

Open Graph description is not detected on the main page of Beijing Air. 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: