46.8 sec in total
1.3 sec
45.2 sec
329 ms
Click here to check amazing Cl 39 content. Otherwise, check out these important facts you probably never knew about cl39.com
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Visit cl39.comWe analyzed Cl39.com page load time and found that the first response time was 1.3 sec and then it took 45.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.
cl39.com performance score
name
value
score
weighting
Value4.0 s
23/100
10%
Value6.1 s
12/100
25%
Value11.4 s
5/100
10%
Value60 ms
100/100
30%
Value0
100/100
15%
Value5.9 s
66/100
10%
1252 ms
2794 ms
1370 ms
2420 ms
697 ms
Our browser made a total of 101 requests to load all elements on the main page. We found that 86% of them (87 requests) were addressed to the original Cl39.com, 6% (6 requests) were made to Bdimg.share.baidu.com and 1% (1 request) were made to S22.cnzz.com. The less responsive or slowest element that took the longest time to load (20.4 sec) belongs to the original domain Cl39.com.
Page size can be reduced by 257.3 kB (63%)
406.9 kB
149.5 kB
In fact, the total size of Cl39.com main page is 406.9 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. 25% of websites need less resources to load. Javascripts take 309.8 kB which makes up the majority of the site volume.
Potential reduce by 23.5 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 23.5 kB or 74% of the original size.
Potential reduce by 7.7 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, Cl 39 needs image optimization as it can save up to 7.7 kB or 24% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 200.7 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 200.7 kB or 65% of the original size.
Potential reduce by 25.4 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. Cl39.com needs all CSS files to be minified and compressed as it can save up to 25.4 kB or 75% of the original size.
Number of requests can be reduced by 17 (17%)
98
81
The browser has sent 98 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cl 39. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.
cl39.com
1252 ms
www.cl39.com
2794 ms
style.css
1370 ms
jQuery.js
2420 ms
tab.js
697 ms
dzi_cl.js
695 ms
jquery-1.10.2.min.js
2390 ms
jquery-1.7.1.min.js
2462 ms
jquery.slide.js
709 ms
stat.php
2746 ms
66371.js
9343 ms
logo.jpg
5611 ms
logo_line.gif
356 ms
tel.jpg
1741 ms
menu_l.png
347 ms
menu_h.jpg
1959 ms
1403242322189259.jpg
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19736 ms
1.jpg
3764 ms
2.jpg
11088 ms
3.jpg
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4.jpg
9434 ms
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10837 ms
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w1.jpg
20380 ms
stat.htm
168 ms
core.php
924 ms
9.gif
4627 ms
shell_v2.js
731 ms
a1.jpg
19996 ms
a2.jpg
18922 ms
bds_s_v2.js
485 ms
bdsstyle.css
225 ms
getnum
1028 ms
is.png
459 ms
sc.png
463 ms
a3.jpg
17813 ms
a4.jpg
16015 ms
app.gif
1260 ms
a5.jpg
14262 ms
looyu.css
7452 ms
a6.jpg
12366 ms
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promise.jpg
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weixin.jpg
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bg_l.gif
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attentive.jpg
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attentive_li.jpg
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bg_l2.gif
9827 ms
att_btit.gif
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pd_tit.gif
12426 ms
btn.png
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l.gif
13165 ms
more.png
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q.gif
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a.gif
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w1.png
13539 ms
w2.png
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13770 ms
s.png
13820 ms
about_bg.gif
14256 ms
cl.gif
13897 ms
yh.gif
13276 ms
more.gif
13325 ms
bg_j1.gif
13560 ms
liyou01.jpg
15004 ms
liyou02.jpg
14411 ms
liyou03.jpg
14166 ms
liyou04.jpg
14306 ms
bg_j2.gif
10041 ms
bg_l3.gif
9827 ms
fbg.gif
9885 ms
top.gif
9812 ms
logger.js
877 ms
kf.gif
10163 ms
cl39.com 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
Links do not have a discernible name
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.
cl39.com 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
Page has valid source maps
cl39.com 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 uses 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 Cl39.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 Cl39.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.
cl39.com
Open Graph description is not detected on the main page of Cl 39. 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: