8.8 sec in total
3.4 sec
5.1 sec
313 ms
Click here to check amazing Vanhoc content for Vietnam. Otherwise, check out these important facts you probably never knew about vanhoc.edu.vn
Tổng hợp những bài văn mẫu hay phổ thông, tuyển tập bài giảng văn học hay nhất, tài liệu văn học tham khảo cho học sinh và giáo viên trên toàn quốc.
Visit vanhoc.edu.vnWe analyzed Vanhoc.edu.vn page load time and found that the first response time was 3.4 sec and then it took 5.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
vanhoc.edu.vn performance score
name
value
score
weighting
Value6.4 s
2/100
10%
Value9.7 s
0/100
25%
Value14.0 s
1/100
10%
Value10,840 ms
0/100
30%
Value1.113
1/100
15%
Value25.7 s
0/100
10%
3413 ms
94 ms
109 ms
131 ms
144 ms
Our browser made a total of 73 requests to load all elements on the main page. We found that 74% of them (54 requests) were addressed to the original Vanhoc.edu.vn, 3% (2 requests) were made to Apis.google.com and 3% (2 requests) were made to Facebook.com. The less responsive or slowest element that took the longest time to load (3.4 sec) belongs to the original domain Vanhoc.edu.vn.
Page size can be reduced by 379.4 kB (25%)
1.5 MB
1.1 MB
In fact, the total size of Vanhoc.edu.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. 60% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.
Potential reduce by 45.3 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 45.3 kB or 84% of the original size.
Potential reduce by 81.9 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. Vanhoc images are well optimized though.
Potential reduce by 131.3 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 131.3 kB or 59% of the original size.
Potential reduce by 120.8 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. Vanhoc.edu.vn needs all CSS files to be minified and compressed as it can save up to 120.8 kB or 81% of the original size.
Number of requests can be reduced by 26 (37%)
70
44
The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vanhoc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
vanhoc.edu.vn
3413 ms
css
94 ms
bootstrap.min.css
109 ms
font-awesome.min.css
131 ms
style.css
144 ms
custom.css
152 ms
responsiveslides.css
142 ms
pagenavi-css.css
152 ms
jquery.min.js
213 ms
q2w3-fixed-widget.min.js
179 ms
bootstrap.min.js
193 ms
scrolltop.js
194 ms
jquery.flexslider.js
184 ms
custom.js
185 ms
widgets.js
14 ms
plusone.js
178 ms
loader.js
141 ms
vertical-m.css
259 ms
conversion.js
75 ms
cb=gapi.loaded_0
139 ms
ti.js
134 ms
fbds.js
134 ms
qcdanhngon1.jpg
1337 ms
vanhoc.png
109 ms
logo-mobile.png
176 ms
cho-anh-nam-phut.jpg
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com-cua-me.jpg
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hoc-sinh-tham-gia-bao-ve-moi-truong.jpg
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ke-lai-ba-dieu-uoc.jpg
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fontawesome-webfont.woff
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a9B_b8QGar5ic3acwqm_6l.js
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top.png
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dpx
7 ms
xrefid.xgi
5 ms
ca.png
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21 ms
bg-control-nav.png
55 ms
bg-direction-nav.png
55 ms
vanhoc.edu.vn accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
Links do not have a discernible name
vanhoc.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
vanhoc.edu.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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vanhoc.edu.vn can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and it does not match the claimed English language. Our system also found out that Vanhoc.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.
vanhoc.edu.vn
Open Graph description is not detected on the main page of Vanhoc. 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: