27 sec in total
806 ms
25.2 sec
967 ms
Visit trungtamtinhoc.edu.vn now to see the best up-to-date Trung Tam Tin Hoc content for Vietnam and also check out these interesting facts you probably never knew about trungtamtinhoc.edu.vn
Trung Tâm Tin Học, tin học văn phòng, tin học thường thức, học tin học online, đào tạo tin học trực tuyến, Tin học và đời sống
Visit trungtamtinhoc.edu.vnWe analyzed Trungtamtinhoc.edu.vn page load time and found that the first response time was 806 ms and then it took 26.2 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 4 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
trungtamtinhoc.edu.vn performance score
name
value
score
weighting
Value3.9 s
25/100
10%
Value4.5 s
37/100
25%
Value13.2 s
2/100
10%
Value4,790 ms
0/100
30%
Value0.105
88/100
15%
Value21.0 s
1/100
10%
806 ms
1602 ms
613 ms
612 ms
638 ms
Our browser made a total of 79 requests to load all elements on the main page. We found that 41% of them (32 requests) were addressed to the original Trungtamtinhoc.edu.vn, 9% (7 requests) were made to Pagead2.googlesyndication.com and 9% (7 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (19.9 sec) relates to the external source Bacsinoigi.com.
Page size can be reduced by 555.9 kB (35%)
1.6 MB
1.0 MB
In fact, the total size of Trungtamtinhoc.edu.vn main page is 1.6 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. 60% of websites need less resources to load. Images take 797.2 kB which makes up the majority of the site volume.
Potential reduce by 146.7 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 146.7 kB or 78% of the original size.
Potential reduce by 62.1 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. Trung Tam Tin Hoc images are well optimized though.
Potential reduce by 334.3 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 334.3 kB or 57% of the original size.
Potential reduce by 12.8 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. Trungtamtinhoc.edu.vn needs all CSS files to be minified and compressed as it can save up to 12.8 kB or 77% of the original size.
Number of requests can be reduced by 30 (42%)
72
42
The browser has sent 72 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Trung Tam Tin Hoc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and as a result speed up the page load time.
trungtamtinhoc.edu.vn
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trungtamtinhoc.edu.vn accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-*] attributes do not match their roles
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
<frame> or <iframe> elements do not have a title
Form elements do not have associated labels
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.
trungtamtinhoc.edu.vn 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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Issues were logged in the Issues panel in Chrome Devtools
trungtamtinhoc.edu.vn 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
Tap targets are not sized appropriately
VI
VI
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Trungtamtinhoc.edu.vn can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and it matches the claimed language. Our system also found out that Trungtamtinhoc.edu.vn 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.
trungtamtinhoc.edu.vn
Open Graph description is not detected on the main page of Trung Tam Tin Hoc. 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: