31.2 sec in total
1.3 sec
29.6 sec
304 ms
Welcome to clb.org.cn homepage info - get ready to check Clb best content right away, or after learning these important things about clb.org.cn
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Visit clb.org.cnWe analyzed Clb.org.cn page load time and found that the first response time was 1.3 sec and then it took 29.9 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.
clb.org.cn performance score
name
value
score
weighting
Value10.9 s
0/100
10%
Value14.2 s
0/100
25%
Value19.7 s
0/100
10%
Value10,340 ms
0/100
30%
Value0.002
100/100
15%
Value28.1 s
0/100
10%
1251 ms
3676 ms
6720 ms
3215 ms
1267 ms
Our browser made a total of 81 requests to load all elements on the main page. We found that 51% of them (41 requests) were addressed to the original Clb.org.cn, 48% (39 requests) were made to Img.clb.org.cn and 1% (1 request) were made to Pub.idqqimg.com. The less responsive or slowest element that took the longest time to load (20.2 sec) relates to the external source Img.clb.org.cn.
Page size can be reduced by 240.3 kB (19%)
1.3 MB
1.0 MB
In fact, the total size of Clb.org.cn main page is 1.3 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. 25% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.
Potential reduce by 64.8 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 12.0 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 64.8 kB or 78% of the original size.
Potential reduce by 174.8 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, Clb needs image optimization as it can save up to 174.8 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 701 B
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 701 B or 11% of the original size.
Number of requests can be reduced by 23 (33%)
70
47
The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Clb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and as a result speed up the page load time.
clb.org.cn
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clb.org.cn accessibility score
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
clb.org.cn best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
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
Missing source maps for large first-party JavaScript
clb.org.cn SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
robots.txt is not valid
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 uses legible font sizes
N/A
ZH
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Clb.org.cn can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Chinese. Our system also found out that Clb.org.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.
clb.org.cn
Open Graph description is not detected on the main page of Clb. 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: