25.3 sec in total
713 ms
24.2 sec
365 ms
Visit bk4.com.vn now to see the best up-to-date Bk 4 content and also check out these interesting facts you probably never knew about bk4.com.vn
Cung cấp 300-400 laptop, máy tính để bàn, thiết bị văn phòng phục vụ đào tạo, thi cử, triển khai tập huấn phần mềm
Visit bk4.com.vnWe analyzed Bk4.com.vn page load time and found that the first response time was 713 ms and then it took 24.6 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 was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
bk4.com.vn performance score
name
value
score
weighting
Value4.6 s
14/100
10%
Value15.7 s
0/100
25%
Value17.3 s
0/100
10%
Value2,020 ms
7/100
30%
Value0
100/100
15%
Value22.6 s
1/100
10%
713 ms
1458 ms
70 ms
941 ms
126 ms
Our browser made a total of 100 requests to load all elements on the main page. We found that 60% of them (60 requests) were addressed to the original Bk4.com.vn, 9% (9 requests) were made to Static.xx.fbcdn.net and 6% (6 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (19.5 sec) belongs to the original domain Bk4.com.vn.
Page size can be reduced by 230.9 kB (20%)
1.2 MB
924.6 kB
In fact, the total size of Bk4.com.vn main page is 1.2 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. 80% 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. Javascripts take 518.8 kB which makes up the majority of the site volume.
Potential reduce by 98.3 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. 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 98.3 kB or 80% of the original size.
Potential reduce by 10.1 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. Bk 4 images are well optimized though.
Potential reduce by 122.5 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 122.5 kB or 24% of the original size.
Potential reduce by 0 B
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. Bk4.com.vn has all CSS files already compressed.
Number of requests can be reduced by 27 (31%)
88
61
The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bk 4. 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 as a result speed up the page load time.
bk4.com.vn
713 ms
bk4.com.vn
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js
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jquery.min-3.6.4.js
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bk4.com.vn accessibility score
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
Buttons do not have an accessible name
<frame> or <iframe> elements do not have a title
Links do not have a discernible name
bk4.com.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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
Issues were logged in the Issues panel in Chrome Devtools
bk4.com.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
VI
VI
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bk4.com.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 Bk4.com.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.
bk4.com.vn
Open Graph data is detected on the main page of Bk 4. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: