31.7 sec in total
5.8 sec
25.5 sec
411 ms
Visit login.icourse163.org now to see the best up-to-date Login Icourse 163 content for China and also check out these interesting facts you probably never knew about login.icourse163.org
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Visit login.icourse163.orgWe analyzed Login.icourse163.org page load time and found that the first response time was 5.8 sec and then it took 25.9 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 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
login.icourse163.org performance score
name
value
score
weighting
Value9.9 s
0/100
10%
Value18.0 s
0/100
25%
Value11.4 s
5/100
10%
Value980 ms
28/100
30%
Value0.126
83/100
15%
Value15.2 s
7/100
10%
5793 ms
4591 ms
1903 ms
204 ms
5917 ms
Our browser made a total of 20 requests to load all elements on the main page. We found that 5% of them (1 request) were addressed to the original Login.icourse163.org, 70% (14 requests) were made to Mc.stu.126.net and 10% (2 requests) were made to Img1.ph.126.net. The less responsive or slowest element that took the longest time to load (19.7 sec) relates to the external source Mc.stu.126.net.
Page size can be reduced by 953.3 kB (31%)
3.1 MB
2.1 MB
In fact, the total size of Login.icourse163.org main page is 3.1 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. Only 10% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.
Potential reduce by 102.8 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 102.8 kB or 76% of the original size.
Potential reduce by 13.5 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. Login Icourse 163 images are well optimized though.
Potential reduce by 727.7 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 727.7 kB or 70% of the original size.
Potential reduce by 109.3 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. Login.icourse163.org needs all CSS files to be minified and compressed as it can save up to 109.3 kB or 83% of the original size.
We found no issues to fix!
16
16
The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Login Icourse 163. According to our analytics all requests are already optimized.
login.icourse163.org
5793 ms
ga.js
4591 ms
core.css
1903 ms
6630234335885341999.png
204 ms
28642E86A017BE922BB2D789D14084D7.png
5917 ms
core.js
19663 ms
logo.png
643 ms
cert_tile.png
965 ms
978969969017630218.png
248 ms
57F4647E07DAD29CEDBBF9F61560AEBF.png
19543 ms
head.png
534 ms
spriteIcon.png
1019 ms
line.png
802 ms
courseList.png
1769 ms
cert_bac.jpg
1541 ms
arrow.png
1203 ms
btm_bg.png
1520 ms
logo4.png
1641 ms
footer.png
3131 ms
icomoon.ttf
4611 ms
login.icourse163.org 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.
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.
login.icourse163.org 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
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
login.icourse163.org 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
ZH
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Login.icourse163.org can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that Login.icourse163.org 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.
login.icourse163.org
Open Graph description is not detected on the main page of Login Icourse 163. 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: