Access 21ic.com. 21IC电子网 - 电子工程师的优选网站

name

value

score

weighting

FCP (First Contentful Paint)

Value6.6 s

2/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value12.0 s

4/100

10%

TBT (Total Blocking Time)

Value150 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.6 s

37/100

10%

21ic.com

683 ms

www.21ic.com

1423 ms

2017global2_min.css

229 ms

2017home1_min.css

682 ms

index_nav2_min.css

911 ms

Our browser made a total of 295 requests to load all elements on the main page. We found that 28% of them (82 requests) were addressed to the original 21ic.com, 12% (35 requests) were made to Misc.21ic.com and 8% (25 requests) were made to Eclick.baidu.com. The less responsive or slowest element that took the longest time to load (5.9 sec) relates to the external source Edu.21ic.com.

Content Size

4.7 MB

After Optimization

3.8 MB

In fact, the total size of 21ic.com main page is 4.7 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.7 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 277.5 kB

Original 325.3 kB
After minification 254.5 kB
After compression 47.9 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 70.8 kB, which is 22% 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 277.5 kB or 85% of the original size.

Image Optimization

-6%

Potential reduce by 231.3 kB

Original 3.7 MB
After minification 3.4 MB

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.

JavaScript Optimization

-43%

Potential reduce by 190.1 kB

Original 445.3 kB
After minification 433.1 kB
After compression 255.1 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 190.1 kB or 43% of the original size.

CSS Optimization

-89%

Potential reduce by 215.2 kB

Original 242.4 kB
After minification 193.6 kB
After compression 27.2 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 215.2 kB or 89% of the original size.

Requests Now

293

After Optimization

179

The browser has sent 293 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 55 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.