7.7 sec in total
940 ms
6.6 sec
164 ms
Visit dsvn.vn now to see the best up-to-date Dsvn content for Vietnam and also check out these interesting facts you probably never knew about dsvn.vn
Tìm vé tàu, đặt vé tàu trực tuyến, mua vé tàu trực tuyến, tra cứu thông tin hành trình về giờ tàu và giá vé, tra cứu lại thông tin vé đã đặt
Visit dsvn.vnWe analyzed Dsvn.vn page load time and found that the first response time was 940 ms and then it took 6.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
dsvn.vn performance score
name
value
score
weighting
Value5.1 s
9/100
10%
Value15.1 s
0/100
25%
Value20.7 s
0/100
10%
Value720 ms
41/100
30%
Value0.678
8/100
15%
Value14.1 s
9/100
10%
940 ms
1353 ms
3787 ms
543 ms
534 ms
Our browser made a total of 30 requests to load all elements on the main page. We found that 77% of them (23 requests) were addressed to the original Dsvn.vn, 7% (2 requests) were made to Static.subiz.com and 7% (2 requests) were made to Sock-p.subiz.com. The less responsive or slowest element that took the longest time to load (3.8 sec) belongs to the original domain Dsvn.vn.
Page size can be reduced by 878.8 kB (68%)
1.3 MB
412.6 kB
In fact, the total size of Dsvn.vn main page is 1.3 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. 30% of websites need less resources to load. Javascripts take 913.9 kB which makes up the majority of the site volume.
Potential reduce by 74.9 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 15.2 kB, which is 19% 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 74.9 kB or 91% of the original size.
Potential reduce by 6.5 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. Dsvn images are well optimized though.
Potential reduce by 647.0 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 647.0 kB or 71% of the original size.
Potential reduce by 150.4 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. Dsvn.vn needs all CSS files to be minified and compressed as it can save up to 150.4 kB or 82% of the original size.
We found no issues to fix!
28
28
The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dsvn. According to our analytics all requests are already optimized.
dsvn.vn
940 ms
ETicket-1.0.20.css
1353 ms
ETicket-1.0.20.js.min.js
3787 ms
LOGO_n.png
543 ms
en-icon.png
534 ms
vn-icon.gif
534 ms
fpt-logo2.png
537 ms
fptlogo.png
541 ms
analytics.js
128 ms
loader.js
126 ms
getitemsonwebsite
296 ms
GetSetting
706 ms
search.html
275 ms
glyphicons-halflings-regular.woff
807 ms
widget.txt
21 ms
subiz-widget-view.css
881 ms
13269
112 ms
init
190 ms
collect
60 ms
ticketPocket.html
272 ms
social.html
293 ms
GetAllGaBacNam
314 ms
widgetIcon.png
268 ms
banner-tet-2016.jpg
1213 ms
loading51.gif
541 ms
del30.png
273 ms
facebook.png
537 ms
icon-youtube.png
368 ms
Member.png
438 ms
GetClientId
532 ms
dsvn.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
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
Form elements do not have associated labels
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
[id] attributes on active, focusable elements are not unique
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.
dsvn.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
Missing source maps for large first-party JavaScript
dsvn.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
VI
VI
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dsvn.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 Dsvn.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.
dsvn.vn
Open Graph description is not detected on the main page of Dsvn. 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: