12.8 sec in total
862 ms
11.2 sec
685 ms
Click here to check amazing Unica content for Vietnam. Otherwise, check out these important facts you probably never knew about unica.vn
Unica.vn website học online hàng đầu Việt Nam với hơn 500.000 học viên và hơn 2.000 khóa học trực tuyến từ giảng viên, chuyên gia hàng đầu.
Visit unica.vnWe analyzed Unica.vn page load time and found that the first response time was 862 ms and then it took 11.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
unica.vn performance score
name
value
score
weighting
Value6.2 s
3/100
10%
Value6.4 s
10/100
25%
Value13.6 s
2/100
10%
Value2,860 ms
3/100
30%
Value0.028
100/100
15%
Value33.7 s
0/100
10%
862 ms
1550 ms
678 ms
926 ms
728 ms
Our browser made a total of 152 requests to load all elements on the main page. We found that 41% of them (62 requests) were addressed to the original Unica.vn, 41% (63 requests) were made to Static.unica.vn and 3% (4 requests) were made to I.imgur.com. The less responsive or slowest element that took the longest time to load (5 sec) relates to the external source Static.unica.vn.
Page size can be reduced by 1.5 MB (32%)
4.7 MB
3.2 MB
In fact, the total size of Unica.vn main page is 4.7 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 4.2 MB which makes up the majority of the site volume.
Potential reduce by 298.4 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 152.2 kB, which is 46% 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 298.4 kB or 91% of the original size.
Potential reduce by 1.2 MB
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. Obviously, Unica needs image optimization as it can save up to 1.2 MB or 28% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 142 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 29.1 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. Unica.vn needs all CSS files to be minified and compressed as it can save up to 29.1 kB or 24% of the original size.
Number of requests can be reduced by 45 (32%)
142
97
The browser has sent 142 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Unica. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.
unica.vn
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unica.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
[aria-hidden="true"] elements contain focusable descendents
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
[aria-*] attributes do not have valid values
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
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
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.
unica.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
Browser errors were logged to the console
Page has valid source maps
unica.vn SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
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 Unica.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 Unica.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.
unica.vn
Open Graph data is detected on the main page of Unica. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: