11.1 sec in total
1.6 sec
9.2 sec
253 ms
Welcome to cenres.ctu.edu.vn homepage info - get ready to check Cenres Ctu best content for Vietnam right away, or after learning these important things about cenres.ctu.edu.vn
Khoa Môi tru?ng và Tài nguyên Thiên nhiên
Visit cenres.ctu.edu.vnWe analyzed Cenres.ctu.edu.vn page load time and found that the first response time was 1.6 sec and then it took 9.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
cenres.ctu.edu.vn performance score
name
value
score
weighting
Value6.5 s
2/100
10%
Value42.1 s
0/100
25%
Value14.3 s
1/100
10%
Value100 ms
98/100
30%
Value1.015
2/100
15%
Value8.8 s
36/100
10%
1635 ms
278 ms
3938 ms
4272 ms
558 ms
Our browser made a total of 45 requests to load all elements on the main page. We found that all of those requests were addressed to Cenres.ctu.edu.vn and no external sources were called. The less responsive or slowest element that took the longest time to load (4.3 sec) belongs to the original domain Cenres.ctu.edu.vn.
Page size can be reduced by 246.0 kB (39%)
632.2 kB
386.2 kB
In fact, the total size of Cenres.ctu.edu.vn main page is 632.2 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. Only 5% of websites need less resources to load. Images take 370.2 kB which makes up the majority of the site volume.
Potential reduce by 76.1 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 76.1 kB or 87% of the original size.
Potential reduce by 32.7 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. Cenres Ctu images are well optimized though.
Potential reduce by 93.1 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 93.1 kB or 75% of the original size.
Potential reduce by 44.1 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. Cenres.ctu.edu.vn needs all CSS files to be minified and compressed as it can save up to 44.1 kB or 89% of the original size.
Number of requests can be reduced by 33 (80%)
41
8
The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cenres Ctu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
cenres.ctu.edu.vn
1635 ms
cp_screen_3.2.css
278 ms
screen.css
3938 ms
stmenu.js
4272 ms
stcode.js
558 ms
header_bg.gif
276 ms
060417line1.gif
263 ms
Picture9.png
2076 ms
search.gif
522 ms
search.png
523 ms
J0115844.GIF
527 ms
bullet.png
540 ms
new.gif
552 ms
steffie.js
763 ms
steffrect.js
764 ms
steffslip.js
770 ms
blank.gif
788 ms
060417line.gif
842 ms
060417buttona2.gif
1013 ms
060417buttona1.gif
1016 ms
round02_m.gif
1024 ms
round2a_m.gif
1049 ms
round2_l.gif
1073 ms
round2a_l.gif
1271 ms
round02_r.gif
1276 ms
round2a_r.gif
1285 ms
round10_m.gif
1316 ms
round10a_m.gif
1345 ms
round10_l.gif
1529 ms
round10a_l.gif
1535 ms
round10_r.gif
1545 ms
round10a_r.gif
1583 ms
060417line1.gif
1619 ms
round22_m.gif
957 ms
round22a_m.gif
964 ms
round22_l.gif
976 ms
round22a_l.gif
1020 ms
round22_r.gif
1062 ms
round22a_r.gif
1214 ms
icon_68.gif
1224 ms
arrow_r.gif
1236 ms
leftnav_h1menu.gif
1287 ms
footer.gif
1335 ms
cp_print_3.2.css
278 ms
print.css
277 ms
cenres.ctu.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
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.
cenres.ctu.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
cenres.ctu.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
Links do not have descriptive text
Image elements do not have [alt] attributes
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 Cenres.ctu.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 Cenres.ctu.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.
cenres.ctu.edu.vn
Open Graph description is not detected on the main page of Cenres Ctu. 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: