64.1 sec in total
19 sec
44.8 sec
253 ms
Welcome to big5.airchina.com.cn homepage info - get ready to check Big 5 Airchina best content for China right away, or after learning these important things about big5.airchina.com.cn
中國國際航空股份有限公司官網,提供國際國內飛機票查詢預訂、航班動態查詢、行李查詢 、網上值機等服務。下載手機客戶端獨享超低價格升級到頭等艙
Visit big5.airchina.com.cnWe analyzed Big5.airchina.com.cn page load time and found that the first response time was 19 sec and then it took 45.1 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 was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
big5.airchina.com.cn performance score
name
value
score
weighting
Value17.5 s
0/100
10%
Value40.1 s
0/100
25%
Value37.2 s
0/100
10%
Value1,880 ms
9/100
30%
Value0.066
97/100
15%
Value39.3 s
0/100
10%
19038 ms
1023 ms
4973 ms
6261 ms
2314 ms
Our browser made a total of 152 requests to load all elements on the main page. We found that 96% of them (146 requests) were addressed to the original Big5.airchina.com.cn, 1% (1 request) were made to Googletagmanager.com and 1% (1 request) were made to Airchina.112.2o7.net. The less responsive or slowest element that took the longest time to load (20.3 sec) belongs to the original domain Big5.airchina.com.cn.
Page size can be reduced by 295.6 kB (19%)
1.6 MB
1.3 MB
In fact, the total size of Big5.airchina.com.cn main page is 1.6 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. 30% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.
Potential reduce by 103.7 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 15.5 kB, which is 12% 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 103.7 kB or 79% of the original size.
Potential reduce by 184.8 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, Big 5 Airchina needs image optimization as it can save up to 184.8 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 7.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 7.1 kB or 62% of the original size.
Number of requests can be reduced by 73 (49%)
149
76
The browser has sent 149 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Big 5 Airchina. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.
big5.airchina.com.cn
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big5.airchina.com.cn accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Image elements do not have [alt] attributes
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
big5.airchina.com.cn best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
big5.airchina.com.cn SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document doesn't use legible font sizes
ZH
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Big5.airchina.com.cn 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 Big5.airchina.com.cn 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.
big5.airchina.com.cn
Open Graph description is not detected on the main page of Big 5 Airchina. 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: