39.7 sec in total
3 sec
33.8 sec
2.9 sec
Click here to check amazing Studioclassroom China content for China. Otherwise, check out these important facts you probably never knew about studioclassroom-china.com
大陆地区官方空中英语教室
Visit studioclassroom-china.comWe analyzed Studioclassroom-china.com page load time and found that the first response time was 3 sec and then it took 36.6 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 14 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
studioclassroom-china.com performance score
name
value
score
weighting
Value4.6 s
14/100
10%
Value6.6 s
8/100
25%
Value11.7 s
4/100
10%
Value60 ms
100/100
30%
Value0.007
100/100
15%
Value6.4 s
60/100
10%
3036 ms
712 ms
725 ms
730 ms
774 ms
Our browser made a total of 89 requests to load all elements on the main page. We found that 93% of them (83 requests) were addressed to the original Studioclassroom-china.com, 1% (1 request) were made to S95.cnzz.com and 1% (1 request) were made to Oz.cnzz.com. The less responsive or slowest element that took the longest time to load (20.4 sec) belongs to the original domain Studioclassroom-china.com.
Page size can be reduced by 535.1 kB (23%)
2.3 MB
1.8 MB
In fact, the total size of Studioclassroom-china.com main page is 2.3 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. 25% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.
Potential reduce by 46.8 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. This page needs HTML code to be minified as it can gain 6.5 kB, which is 11% 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 46.8 kB or 81% of the original size.
Potential reduce by 170.9 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. Studioclassroom China images are well optimized though.
Potential reduce by 131.3 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 131.3 kB or 69% of the original size.
Potential reduce by 186.1 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. Studioclassroom-china.com needs all CSS files to be minified and compressed as it can save up to 186.1 kB or 85% of the original size.
Number of requests can be reduced by 33 (45%)
73
40
The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Studioclassroom China. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 22 to 1 for CSS and as a result speed up the page load time.
studioclassroom-china.com
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system.base.css
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search.css
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uc_order.css
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studioclassroom-china.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.
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
Form elements do not have associated labels
Links do not have a discernible name
<object> elements do not have alternate text
studioclassroom-china.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
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
studioclassroom-china.com 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
Document uses plugins
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
ZH
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Studioclassroom-china.com 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 Studioclassroom-china.com 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.
studioclassroom-china.com
Open Graph description is not detected on the main page of Studioclassroom China. 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: