10.1 sec in total
261 ms
9.7 sec
175 ms
Click here to check amazing Online Vdsc content for Vietnam. Otherwise, check out these important facts you probably never knew about online.vdsc.com.vn
Visit online.vdsc.com.vnWe analyzed Online.vdsc.com.vn page load time and found that the first response time was 261 ms and then it took 9.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
online.vdsc.com.vn performance score
name
value
score
weighting
Value3.6 s
33/100
10%
Value5.4 s
20/100
25%
Value5.5 s
55/100
10%
Value80 ms
99/100
30%
Value0.001
100/100
15%
Value5.4 s
71/100
10%
261 ms
743 ms
740 ms
746 ms
750 ms
Our browser made a total of 54 requests to load all elements on the main page. We found that all of those requests were addressed to Online.vdsc.com.vn and no external sources were called. The less responsive or slowest element that took the longest time to load (3.7 sec) belongs to the original domain Online.vdsc.com.vn.
Page size can be reduced by 660.6 kB (43%)
1.5 MB
858.3 kB
In fact, the total size of Online.vdsc.com.vn main page is 1.5 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. Javascripts take 738.0 kB which makes up the majority of the site volume.
Potential reduce by 11.9 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 3.6 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 11.9 kB or 79% of the original size.
Potential reduce by 70.3 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. Online Vdsc images are well optimized though.
Potential reduce by 518.6 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 518.6 kB or 70% of the original size.
Potential reduce by 59.8 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. Online.vdsc.com.vn needs all CSS files to be minified and compressed as it can save up to 59.8 kB or 85% of the original size.
Number of requests can be reduced by 26 (49%)
53
27
The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Online Vdsc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
login.action
261 ms
jquery-ui-1.8.18.custom.css
743 ms
basicSimpleModal.css
740 ms
tabletools.css
746 ms
grid.css
750 ms
rongviet.css
746 ms
jquery-1.7.1.min.js
2226 ms
jquery.dataTables.min.js
2210 ms
jquery-ui-1.8.18.custom.min.js
3698 ms
jquery.simplemodal.js
991 ms
jquery.ui.core.js
991 ms
jquery.ui.widget.js
993 ms
jquery.ui.position.js
1236 ms
jquery.ui.autocomplete.js
1484 ms
tabletools.min.js
1732 ms
highcharts.js
2956 ms
global.js
1977 ms
login.js
1979 ms
logoRV.jpg
1070 ms
index.html
1064 ms
new.gif
1049 ms
co_vn.gif
1051 ms
co_us.gif
1049 ms
doc_menu.gif
1050 ms
banggia.gif
1060 ms
tintuc.gif
1055 ms
tintuc2.gif
1054 ms
login_bg_left.gif
1052 ms
login_bg_center.gif
1050 ms
login_verisige.gif
1052 ms
login.action
1055 ms
bg_btn.gif
1052 ms
icon_muiten.gif
1056 ms
icon_call.gif
1057 ms
icon_yahoo.gif
1059 ms
footer.gif
1057 ms
logo-pop.gif
1059 ms
timer.action
249 ms
skitter.styles.css
249 ms
jquery-1.6.3.min.js
989 ms
jquery.easing.1.3.js
253 ms
jquery.skitter.min.js
496 ms
highlight.js
253 ms
jquery.animate-colors-min.js
491 ms
randomImage.jpg
494 ms
cskh_tt.jpg
989 ms
survey.jpg
1477 ms
0.jpg
751 ms
rv8.jpg
1235 ms
rv1.jpg
1241 ms
rv2.jpg
1231 ms
prev.png
998 ms
next.png
1217 ms
ajax-loader.gif
1244 ms
online.vdsc.com.vn accessibility score
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
online.vdsc.com.vn SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
robots.txt is not valid
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
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Online.vdsc.com.vn can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Online.vdsc.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.
online.vdsc.com.vn
Open Graph description is not detected on the main page of Online Vdsc. 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: