31.2 sec in total
1.1 sec
29.7 sec
344 ms
Click here to check amazing Coremail content for China. Otherwise, check out these important facts you probably never knew about coremail.cn
Coremail专注电子邮件技术及服务24年,产品涵盖邮件系统,企业邮箱,邮件网关等。Coremail邮件系统性能稳定高效,是众多知名企业及政府高校搭建邮件服务器系统及企业邮箱的首选方案。
Visit coremail.cnWe analyzed Coremail.cn page load time and found that the first response time was 1.1 sec and then it took 30.1 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.
coremail.cn performance score
name
value
score
weighting
Value4.6 s
15/100
10%
Value4.9 s
30/100
25%
Value17.5 s
0/100
10%
Value1,010 ms
27/100
30%
Value0
100/100
15%
Value11.8 s
18/100
10%
1119 ms
3305 ms
3102 ms
6174 ms
917 ms
Our browser made a total of 118 requests to load all elements on the main page. We found that 41% of them (48 requests) were addressed to the original Coremail.cn, 7% (8 requests) were made to Tp2.sinaimg.cn and 7% (8 requests) were made to Img.t.sinajs.cn. The less responsive or slowest element that took the longest time to load (19.3 sec) belongs to the original domain Coremail.cn.
Page size can be reduced by 439.5 kB (28%)
1.6 MB
1.2 MB
In fact, the total size of Coremail.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. 35% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.
Potential reduce by 33.3 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 9.6 kB, which is 21% 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 33.3 kB or 72% of the original size.
Potential reduce by 129.2 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, Coremail needs image optimization as it can save up to 129.2 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 213.4 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 213.4 kB or 61% of the original size.
Potential reduce by 63.6 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. Coremail.cn needs all CSS files to be minified and compressed as it can save up to 63.6 kB or 82% of the original size.
Number of requests can be reduced by 43 (38%)
114
71
The browser has sent 114 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Coremail. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
coremail.cn
1119 ms
www.coremail.cn
3305 ms
css_whir.css
3102 ms
jquery-1.4.2.min.js
6174 ms
subSite_ban.js
917 ms
slideBox.js
2871 ms
wpa.php
883 ms
H_SolutionBg.jpg
394 ms
floatTop.png
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H_arrow.jpg
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index.php
2090 ms
H_newsLine.jpg
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H_more.jpg
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12815 ms
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14633 ms
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14075 ms
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1134 ms
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stat.htm
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core.php
609 ms
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views.js
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weiboShow.css
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gaea_1_19.js
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show.js
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wb_logo16_a.png
54 ms
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icon_follow.png
55 ms
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589 ms
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2020 ms
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2811 ms
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2816 ms
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2826 ms
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357 ms
1
350 ms
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344 ms
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346 ms
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339 ms
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359 ms
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367 ms
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55 ms
bg_trans.png
21 ms
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a.gif
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contains.js
326 ms
tmp.gif
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r.cgi
856 ms
conv.php
566 ms
bsl.js
3970 ms
Enter.php
1857 ms
main_icon_invite_mess_api.js
2036 ms
main.css
1170 ms
fix.css
675 ms
version.js
7633 ms
m-webim-lite.css
329 ms
m-webim-lite.js
6485 ms
Refresh.php
401 ms
stat.gif
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main.css
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Refresh.php
273 ms
coremail.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
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.
coremail.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
General
Impact
Issue
Registers an unload listener
Detected JavaScript libraries
Uses deprecated APIs
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
Issues were logged in the Issues panel in Chrome Devtools
coremail.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 uses legible font sizes
Tap targets are not sized appropriately
ZH
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Coremail.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 Coremail.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.
coremail.cn
Open Graph description is not detected on the main page of Coremail. 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: