12.1 sec in total
813 ms
10.4 sec
907 ms
Visit ucan.vn now to see the best up-to-date Ucan content for Vietnam and also check out these interesting facts you probably never knew about ucan.vn
Phần mềm học tiếng Anh online độc nhất vô nhị ở Ucan.vn, thời gian hoc tieng Anh 1 nửa, hiệu quả gấp 10 lần
Visit ucan.vnWe analyzed Ucan.vn page load time and found that the first response time was 813 ms and then it took 11.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
ucan.vn performance score
name
value
score
weighting
Value7.3 s
1/100
10%
Value7.3 s
5/100
25%
Value17.2 s
0/100
10%
Value730 ms
41/100
30%
Value0.003
100/100
15%
Value27.6 s
0/100
10%
813 ms
2374 ms
439 ms
458 ms
443 ms
Our browser made a total of 109 requests to load all elements on the main page. We found that 50% of them (55 requests) were addressed to the original Ucan.vn, 34% (37 requests) were made to Media.ucan.vn and 4% (4 requests) were made to Facebook.com. The less responsive or slowest element that took the longest time to load (4.6 sec) relates to the external source Media.ucan.vn.
Page size can be reduced by 634.4 kB (18%)
3.5 MB
2.9 MB
In fact, the total size of Ucan.vn main page is 3.5 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. 70% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.
Potential reduce by 90.9 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 44.2 kB, which is 42% 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 90.9 kB or 87% of the original size.
Potential reduce by 105.6 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. Ucan images are well optimized though.
Potential reduce by 339.0 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 339.0 kB or 64% of the original size.
Potential reduce by 98.9 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. Ucan.vn needs all CSS files to be minified and compressed as it can save up to 98.9 kB or 77% of the original size.
Number of requests can be reduced by 36 (45%)
80
44
The browser has sent 80 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ucan. 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 from 11 to 1 for CSS and as a result speed up the page load time.
ucan.vn
813 ms
www.ucan.vn
2374 ms
font-awesome.min.css
439 ms
controller_common.css
458 ms
index.css
443 ms
front.css
445 ms
controller_common.css
446 ms
front-footer.css
685 ms
front-menu.css
903 ms
front-bluebar.css
901 ms
jquery.jscrollpane.css
902 ms
jquery-ui.min.css
906 ms
site.css
913 ms
index.css
1126 ms
jquery-1.7.1.min.js
1569 ms
angular.min.js
1568 ms
index.js
1349 ms
jquery-ui-1.8.11.custom.min.js
1818 ms
jstyle.js
1372 ms
ucan-plugin.js
1565 ms
jquery.jplayer.min.js
1795 ms
jplayer.js
1810 ms
jquery.jscrollpane.min.js
2010 ms
jquery.mousewheel.js
2008 ms
index.js
2013 ms
dict.js
2244 ms
front.js
2246 ms
site.js
2254 ms
jquery.min.js
31 ms
ga.js
9 ms
__utm.gif
22 ms
collect
108 ms
fbds.js
112 ms
fbevents.js
181 ms
cover-3.jpg
1120 ms
logo.png
322 ms
home.png
320 ms
banner_promotion.gif
523 ms
1.jpg
518 ms
2.jpg
521 ms
3.jpg
517 ms
4.jpg
735 ms
5.jpg
733 ms
microsoft.png
957 ms
vt.png
952 ms
mobi.png
953 ms
vnm.png
954 ms
bimi.png
1166 ms
enci.png
1169 ms
totop.png
1386 ms
delete.png
1388 ms
listening.jpg
1106 ms
cover.jpg
1361 ms
4%20(26).jpg
2175 ms
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1386 ms
stonehenge.jpg
1394 ms
54.jpg
1610 ms
confused.jpg
2351 ms
upcovera.jpg
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img11535728112013_13-2-1.jpg
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img05123228112013_cuong.jpg
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2169 ms
all.js
305 ms
menu-submenu-right.png
1359 ms
7.jpg
1366 ms
2.jpg
1590 ms
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2132 ms
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box-bottom.png
2130 ms
ratings.png
2135 ms
quote_start.png
2142 ms
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2140 ms
widget_v2.139.js
69 ms
fontawesome-webfont.woff
2545 ms
140 ms
__$$__stringtable_lang_vi.js
37 ms
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logo.png
1857 ms
home.png
1857 ms
80 ms
xd_arbiter.php
159 ms
xd_arbiter.php
313 ms
1.jpg
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1900 ms
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banner_promotion.gif
4636 ms
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1690 ms
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1972 ms
vt.png
1657 ms
mobi.png
1714 ms
vnm.png
1717 ms
microsoft.png
1726 ms
bimi.png
1691 ms
enci.png
1751 ms
totop.png
1534 ms
delete.png
1549 ms
7.jpg
1827 ms
3.jpg
1985 ms
2.jpg
2298 ms
avatar_simple_visitor.png
179 ms
box-bottom.png
1012 ms
4.jpg
1547 ms
ratings.png
1254 ms
5.jpg
1579 ms
quote_finish.png
1505 ms
quote_start.png
1677 ms
aL63HcygAAVYuCCsAAA==
3 ms
6 ms
ucan.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
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.
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
ucan.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
ucan.vn SEO score
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
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ucan.vn can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese 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 Ucan.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.
ucan.vn
Open Graph description is not detected on the main page of Ucan. 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: