74.8 sec in total
3.3 sec
70.9 sec
578 ms
Welcome to 3di.cn homepage info - get ready to check 3 Di best content right away, or after learning these important things about 3di.cn
苏州弘智教育
Visit 3di.cnWe analyzed 3di.cn page load time and found that the first response time was 3.3 sec and then it took 71.5 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 30 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
3di.cn performance score
name
value
score
weighting
Value4.4 s
17/100
10%
Value8.7 s
1/100
25%
Value9.7 s
11/100
10%
Value0 ms
100/100
30%
Value0.058
98/100
15%
Value6.8 s
55/100
10%
3344 ms
5087 ms
3333 ms
1109 ms
2641 ms
Our browser made a total of 125 requests to load all elements on the main page. We found that 70% of them (87 requests) were addressed to the original 3di.cn, 10% (12 requests) were made to Bdimg.share.baidu.com and 6% (7 requests) were made to Lxbjs.baidu.com. The less responsive or slowest element that took the longest time to load (20 sec) belongs to the original domain 3di.cn.
Page size can be reduced by 382.5 kB (69%)
557.2 kB
174.7 kB
In fact, the total size of 3di.cn main page is 557.2 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. HTML takes 192.8 kB which makes up the majority of the site volume.
Potential reduce by 160.8 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. 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 160.8 kB or 83% of the original size.
Potential reduce by 7.4 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, 3 Di needs image optimization as it can save up to 7.4 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 89.1 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 89.1 kB or 50% of the original size.
Potential reduce by 125.3 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. 3di.cn needs all CSS files to be minified and compressed as it can save up to 125.3 kB or 85% of the original size.
Number of requests can be reduced by 33 (36%)
92
59
The browser has sent 92 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 3 Di. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
3di.cn
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dedecms.css
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3di.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.
3di.cn best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
3di.cn SEO score
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
N/A
GB2312
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 3di.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) and no language is claimed in <html> or <meta> tags either. Our system also found out that 3di.cn main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
3di.cn
Open Graph description is not detected on the main page of 3 Di. 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: