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Welcome to luyenthi.duytan.edu.vn homepage info - get ready to check Luyen Thi Duy Tan best content for Vietnam right away, or after learning these important things about luyenthi.duytan.edu.vn
Nơi chia sẻ các Bài giảng, Bài tập, Bài Luyện thi môn Toán, Vật Lý, Hóa học, Sinh học, Ngữ Văn, Anh Văn. Giúp cho học sinh ôn luyện kiến thức cho kỳ thi Tuyển sinh Đại học, Cao đẳng.
Visit luyenthi.duytan.edu.vnWe analyzed Luyenthi.duytan.edu.vn page load time and found that the first response time was 1.6 sec and then it took 10.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
luyenthi.duytan.edu.vn performance score
name
value
score
weighting
Value9.4 s
0/100
10%
Value17.0 s
0/100
25%
Value18.6 s
0/100
10%
Value1,790 ms
10/100
30%
Value0.114
86/100
15%
Value19.0 s
3/100
10%
1565 ms
1424 ms
505 ms
759 ms
2201 ms
Our browser made a total of 92 requests to load all elements on the main page. We found that 80% of them (74 requests) were addressed to the original Luyenthi.duytan.edu.vn, 7% (6 requests) were made to Google-analytics.com and 2% (2 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Luyenthi.duytan.edu.vn.
Page size can be reduced by 836.5 kB (30%)
2.8 MB
2.0 MB
In fact, the total size of Luyenthi.duytan.edu.vn main page is 2.8 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. 75% 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 1.9 MB which makes up the majority of the site volume.
Potential reduce by 108.3 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 40.9 kB, which is 34% 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 108.3 kB or 90% of the original size.
Potential reduce by 32.5 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. Luyen Thi Duy Tan images are well optimized though.
Potential reduce by 462.0 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 462.0 kB or 82% of the original size.
Potential reduce by 233.6 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. Luyenthi.duytan.edu.vn needs all CSS files to be minified and compressed as it can save up to 233.6 kB or 85% of the original size.
Number of requests can be reduced by 30 (34%)
88
58
The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Luyen Thi Duy Tan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.
luyenthi.duytan.edu.vn
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luyenthi.duytan.edu.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-hidden="true"] elements contain focusable descendents
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
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
Links do not have a discernible name
luyenthi.duytan.edu.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
luyenthi.duytan.edu.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
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 Luyenthi.duytan.edu.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 Luyenthi.duytan.edu.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.
luyenthi.duytan.edu.vn
Open Graph description is not detected on the main page of Luyen Thi Duy Tan. 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: