4.9 sec in total
949 ms
3.7 sec
239 ms
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Visit luanvan.net.vnWe analyzed Luanvan.net.vn page load time and found that the first response time was 949 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster. This domain responded with an error, which can significantly jeopardize Luanvan.net.vn rating and web reputation
luanvan.net.vn performance score
name
value
score
weighting
Value3.6 s
32/100
10%
Value3.8 s
55/100
25%
Value8.1 s
21/100
10%
Value500 ms
58/100
30%
Value0.115
86/100
15%
Value8.7 s
36/100
10%
949 ms
1142 ms
740 ms
6 ms
244 ms
Our browser made a total of 39 requests to load all elements on the main page. We found that 33% of them (13 requests) were addressed to the original Luanvan.net.vn, 26% (10 requests) were made to S1.luanvan.net.vn and 23% (9 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source S1.luanvan.net.vn.
Page size can be reduced by 87.9 kB (35%)
252.5 kB
164.6 kB
In fact, the total size of Luanvan.net.vn main page is 252.5 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Images take 123.1 kB which makes up the majority of the site volume.
Potential reduce by 23.5 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. 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 23.5 kB or 75% of the original size.
Potential reduce by 40.1 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. Obviously, Luan Van needs image optimization as it can save up to 40.1 kB or 33% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 1.6 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. This website has mostly compressed JavaScripts.
Potential reduce by 22.7 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. Luanvan.net.vn needs all CSS files to be minified and compressed as it can save up to 22.7 kB or 82% of the original size.
Number of requests can be reduced by 11 (32%)
34
23
The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Luan Van. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.
luanvan.net.vn
949 ms
default.aspx
1142 ms
style.css
740 ms
jquery.min.js
6 ms
customscript.js
244 ms
cse.js
32 ms
thiet-ke-xay-dung-trung-tam-thuong-mai-nga-nam-san-bay-cat-b_hjHZWjDzHd.jpg
1329 ms
body_bg.gif
284 ms
subnav_bg.jpg
465 ms
banner.jpg
968 ms
box_header_bg.gif
487 ms
bluearrow.gif
489 ms
pdf16x16.gif
490 ms
content_shape.gif
502 ms
facebook_16x16.gif
790 ms
twitter_16x16.gif
787 ms
de-tai-nghien-cuu-du-an-xay-dung-tuyen-noi-hai-huyen-c-d-tin_zlTPVwisxl.jpg
1088 ms
do-an-thiet-ke-xay-dung-ki-tuc-xa-sinh-vien-truong-dai-hoc-n_ZF7vobZwer.jpg
1328 ms
de-tai-tim-hieu-ve-thiet-ke-kien-truc-cong-trinh_tJaHzOy7QL.jpg
1330 ms
thiet-ke-xay-dung-chung-cu-cao-tang-gia-loc-tinh-hai-duong_8dLWxgr3ZB.jpg
1333 ms
de-tai-nghien-cuu-xay-dung-mo-hinh-ham-dong-nang-dong-co-di_3tGgQBa5IV.jpg
1334 ms
tong-quan-cac-bo-bien-doi-dung-trong-luoi-p-di-sau-xay-dung_L6dJLcsk6P.jpg
1565 ms
de-tai-nghien-cuu-thiet-ke-he-thong-dieu-khien-nhiet-do-bang_4s6Ar8jfOL.jpg
1562 ms
de-tai-thiet-ke-bo-nap-ac-qui-tu-dong_DJnInlMyyh.jpg
1567 ms
de-tai-thiet-ke-he-thong-cung-cap-dien-cho-khu-cong-nghiep-b_XCIyASEgQ7.jpg
1570 ms
cse.js
82 ms
jsapi
38 ms
default+vi.css
4 ms
default.css
16 ms
default+vi.I.js
16 ms
default.css
16 ms
ga.js
64 ms
async-ads.js
40 ms
google_custom_search_watermark.gif
35 ms
small-logo.png
51 ms
search_box_icon.png
52 ms
clear.png
52 ms
__utm.gif
23 ms
__utm.gif
4 ms
luanvan.net.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.
luanvan.net.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
luanvan.net.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 Luanvan.net.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 Luanvan.net.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.
luanvan.net.vn
Open Graph description is not detected on the main page of Luan Van. 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: