9 sec in total
911 ms
7.8 sec
290 ms
Welcome to techmaster.vn homepage info - get ready to check Techmaster best content for Vietnam right away, or after learning these important things about techmaster.vn
Học viện CNTT Techmaster Việt Nam - Đào tạo lập trình chuyên nghiệp. Học là có việc - Cam kết việc làm. Khóa học lập trình Web Frontend React.js, Java Spring Boot, lập trình di động IOS, Flutter, khóa...
Visit techmaster.vnWe analyzed Techmaster.vn page load time and found that the first response time was 911 ms and then it took 8.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
techmaster.vn performance score
name
value
score
weighting
Value3.9 s
24/100
10%
Value13.2 s
0/100
25%
Value15.6 s
0/100
10%
Value330 ms
75/100
30%
Value0.178
68/100
15%
Value29.6 s
0/100
10%
911 ms
547 ms
738 ms
495 ms
33 ms
Our browser made a total of 97 requests to load all elements on the main page. We found that 34% of them (33 requests) were addressed to the original Techmaster.vn, 21% (20 requests) were made to Static.xx.fbcdn.net and 16% (16 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (3.7 sec) belongs to the original domain Techmaster.vn.
Page size can be reduced by 556.1 kB (40%)
1.4 MB
829.8 kB
In fact, the total size of Techmaster.vn main page is 1.4 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. 55% of websites need less resources to load. Images take 665.9 kB which makes up the majority of the site volume.
Potential reduce by 81.5 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 34.6 kB, which is 36% 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 81.5 kB or 85% of the original size.
Potential reduce by 34.6 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. Techmaster images are well optimized though.
Potential reduce by 300.6 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 300.6 kB or 66% of the original size.
Potential reduce by 139.4 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. Techmaster.vn needs all CSS files to be minified and compressed as it can save up to 139.4 kB or 82% of the original size.
Number of requests can be reduced by 35 (40%)
88
53
The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Techmaster. 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 10 to 1 for CSS and as a result speed up the page load time.
techmaster.vn
911 ms
jquery-2.1.3.min.js
547 ms
boostrap-hljs.min.css
738 ms
font-awesome.min.css
495 ms
css
33 ms
index.css
496 ms
api.js
41 ms
bootstrap.min.js
510 ms
highlight.pack.js
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base.js
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jquery.bxslider.min.js
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analytics.js
76 ms
recaptcha__en.js
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logo.png
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algorithm.jpg
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resteasy_logo_600x.png
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ASPNETMVC(1).png
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iOSObjectiveC.jpg
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JavaThucHanh.jpg
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DuongVanThang.jpg
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all.js
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fontawesome-webfont.woff
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glyphicons-halflings-regular.woff
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collect
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fallback
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fallback__ltr.css
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css
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logo_48.png
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refresh.png
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audio.png
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xd_arbiter.php
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page.php
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safe_image.php
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techmaster.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
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
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
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
techmaster.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
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
techmaster.vn SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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 Techmaster.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 Techmaster.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.
techmaster.vn
Open Graph description is not detected on the main page of Techmaster. 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: