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Click here to check amazing 21 Ic content for China. Otherwise, check out these important facts you probably never knew about 21ic.com
21IC电子网,电子工程师的优选网站(嵌入式,单片机,DSP,EDA,测试测量,元器件,医疗电子,智能电网)
Visit 21ic.comWe analyzed 21ic.com page load time and found that the first response time was 3 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 were 20 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
21ic.com performance score
name
value
score
weighting
Value6.0 s
4/100
10%
Value6.2 s
11/100
25%
Value10.5 s
7/100
10%
Value150 ms
95/100
30%
Value0
100/100
15%
Value9.0 s
33/100
10%
3024 ms
12768 ms
1372 ms
1373 ms
876 ms
Our browser made a total of 268 requests to load all elements on the main page. We found that 24% of them (63 requests) were addressed to the original 21ic.com, 33% (89 requests) were made to Misc.21ic.com and 14% (38 requests) were made to Img.21ic.com. The less responsive or slowest element that took the longest time to load (20.5 sec) relates to the external source Img.21ic.com.
Page size can be reduced by 1.1 MB (20%)
5.4 MB
4.3 MB
In fact, the total size of 21ic.com main page is 5.4 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. 50% of websites need less resources to load. Images take 4.4 MB which makes up the majority of the site volume.
Potential reduce by 172.3 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 24.5 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 172.3 kB or 83% of the original size.
Potential reduce by 353.1 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. 21 Ic images are well optimized though.
Potential reduce by 444.8 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 444.8 kB or 68% of the original size.
Potential reduce by 107.0 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. 21ic.com needs all CSS files to be minified and compressed as it can save up to 107.0 kB or 88% of the original size.
Number of requests can be reduced by 63 (26%)
246
183
The browser has sent 246 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 21 Ic. 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 4 to 1 for CSS and as a result speed up the page load time.
21ic.com
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21ic.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
Links do not have a discernible name
21ic.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
General
Impact
Issue
Detected JavaScript libraries
21ic.com SEO score
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
GB
GB2312
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 21ic.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed language. Our system also found out that 21ic.com 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.
21ic.com
Open Graph description is not detected on the main page of 21 Ic. 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: