12.5 sec in total
1.4 sec
10.9 sec
209 ms
Visit viettel.vn now to see the best up-to-date Viettel content for Vietnam and also check out these interesting facts you probably never knew about viettel.vn
Cung cấp thông tin đầy đủ, chính xác mọi Dịch vụ, Khuyến mại của Viettel Telecom. Đăng nhập để tận hưởng thế giới Ưu đãi & dịch vụ Chăm sóc khách hàng tốt nhất
Visit viettel.vnWe analyzed Viettel.vn page load time and found that the first response time was 1.4 sec and then it took 11.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
viettel.vn performance score
name
value
score
weighting
Value12.1 s
0/100
10%
Value60.3 s
0/100
25%
Value44.2 s
0/100
10%
Value21,090 ms
0/100
30%
Value0.916
3/100
15%
Value56.9 s
0/100
10%
1445 ms
728 ms
487 ms
488 ms
496 ms
Our browser made a total of 82 requests to load all elements on the main page. We found that 95% of them (78 requests) were addressed to the original Viettel.vn, 2% (2 requests) were made to P.jwpcdn.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (6.1 sec) belongs to the original domain Viettel.vn.
Page size can be reduced by 710.5 kB (17%)
4.2 MB
3.5 MB
In fact, the total size of Viettel.vn main page is 4.2 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. 35% of websites need less resources to load. Images take 3.7 MB which makes up the majority of the site volume.
Potential reduce by 50.4 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 14.3 kB, which is 24% 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 50.4 kB or 86% of the original size.
Potential reduce by 335.9 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. Viettel images are well optimized though.
Potential reduce by 240.1 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 240.1 kB or 69% of the original size.
Potential reduce by 84.2 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. Viettel.vn needs all CSS files to be minified and compressed as it can save up to 84.2 kB or 83% of the original size.
Number of requests can be reduced by 22 (27%)
81
59
The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Viettel. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
viettel.vn
1445 ms
style.css
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reset.css
487 ms
jqueryslidemenu.css
488 ms
slideshows.css
496 ms
jquery.bxslider.css
502 ms
style-update.css
505 ms
style-table.css
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coder_update.css
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jquery.min.js
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jqueryslidemenu.js
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jquery.cycle.all.js
1510 ms
jquery.easing.1.3.js
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func_main.js
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jquery.bxslider.min.js
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video.js
1208 ms
vtLogin.js
1210 ms
jwplayer.js
1698 ms
base64.js
1208 ms
common_function.js
1210 ms
vtSearchSuggestion.js
1259 ms
vtFrontend.js
1689 ms
global.js
1452 ms
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viettel.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
Image elements do not have [alt] attributes
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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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.
viettel.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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
Issues were logged in the Issues panel in Chrome Devtools
viettel.vn 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
Tap targets are not sized appropriately
VI
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Viettel.vn can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and it does not match the claimed English language. Our system also found out that Viettel.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.
viettel.vn
Open Graph description is not detected on the main page of Viettel. 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: