30.5 sec in total
6.2 sec
23.5 sec
853 ms
Click here to check amazing Viet Cert content for Vietnam. Otherwise, check out these important facts you probably never knew about vietcert.org
Tổ chức đánh giá sự phù hợp VietCert cung cấp dịch vụ chứng nhận sản phẩm hàng hóa phù hợp quy chuẩn, tiêu chuẩn Việt Nam (TCVN), giám định, thử nghiệm, hiệu chuẩn, kiểm tra nhà nước hàng nhập khẩu, đ...
Visit vietcert.orgWe analyzed Vietcert.org page load time and found that the first response time was 6.2 sec and then it took 24.3 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.
vietcert.org performance score
name
value
score
weighting
Value10.4 s
0/100
10%
Value10.9 s
0/100
25%
Value24.8 s
0/100
10%
Value33,470 ms
0/100
30%
Value0.031
100/100
15%
Value53.6 s
0/100
10%
6196 ms
4805 ms
4541 ms
4543 ms
4552 ms
Our browser made a total of 97 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Vietcert.org, 86% (83 requests) were made to Cdn.vietcert.org and 4% (4 requests) were made to Css-dashboard.subiz.com. The less responsive or slowest element that took the longest time to load (10.8 sec) relates to the external source Cdn.vietcert.org.
Page size can be reduced by 1.4 MB (29%)
4.9 MB
3.4 MB
In fact, the total size of Vietcert.org main page is 4.9 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 3.4 MB which makes up the majority of the site volume.
Potential reduce by 309.0 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 180.6 kB, which is 55% 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 309.0 kB or 93% of the original size.
Potential reduce by 260.1 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. Viet Cert images are well optimized though.
Potential reduce by 524.9 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 524.9 kB or 73% of the original size.
Potential reduce by 337.4 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. Vietcert.org needs all CSS files to be minified and compressed as it can save up to 337.4 kB or 85% of the original size.
Number of requests can be reduced by 29 (32%)
92
63
The browser has sent 92 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Viet Cert. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.
vietcert.org
6196 ms
bootstrap.min.css
4805 ms
font-awesome.min.css
4541 ms
style.css
4543 ms
animate.min.css
4552 ms
main.css
4839 ms
perfect-scrollbar.css
4575 ms
theme_blue.css
4817 ms
jquery.min.js
5093 ms
bootstrap.min.js
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jquery.transit.js
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twitter-bootstrap-hover-dropdown.min.js
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settings.css
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flexslider.css
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jquery.themepunch.plugins.min.js
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jquery.stellar.min.js
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jquery.colorbox-min.js
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perfect-scrollbar.js
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index.js
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subiz-widget-view.css
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vietcert.org 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
button, link, and menuitem elements do not have accessible names.
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
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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.
vietcert.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
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
vietcert.org SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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 Vietcert.org 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 Vietcert.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.
vietcert.org
Open Graph data is detected on the main page of Viet Cert. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: