5 sec in total
1.4 sec
3.4 sec
213 ms
Click here to check amazing CEFALT content for Vietnam. Otherwise, check out these important facts you probably never knew about cefalt.edu.vn
CEFALT - Trung tâm đào tạo, bồi dưỡng kiến thức ngoại giao và ngoại ngữ
Visit cefalt.edu.vnWe analyzed Cefalt.edu.vn page load time and found that the first response time was 1.4 sec and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
cefalt.edu.vn performance score
name
value
score
weighting
Value5.0 s
10/100
10%
Value8.9 s
1/100
25%
Value9.9 s
10/100
10%
Value1,100 ms
24/100
30%
Value0.96
2/100
15%
Value14.2 s
9/100
10%
1439 ms
1052 ms
548 ms
548 ms
547 ms
Our browser made a total of 41 requests to load all elements on the main page. We found that 76% of them (31 requests) were addressed to the original Cefalt.edu.vn, 7% (3 requests) were made to Facebook.com and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Cefalt.edu.vn.
Page size can be reduced by 59.4 kB (25%)
234.5 kB
175.0 kB
In fact, the total size of Cefalt.edu.vn main page is 234.5 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. 15% of websites need less resources to load. Javascripts take 104.4 kB which makes up the majority of the site volume.
Potential reduce by 12.4 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 3.3 kB, which is 20% 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 12.4 kB or 76% of the original size.
Potential reduce by 148 B
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. CEFALT images are well optimized though.
Potential reduce by 36.2 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 36.2 kB or 35% of the original size.
Potential reduce by 10.7 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. Cefalt.edu.vn needs all CSS files to be minified and compressed as it can save up to 10.7 kB or 90% of the original size.
Number of requests can be reduced by 19 (59%)
32
13
The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CEFALT. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.
cefalt.edu.vn
1439 ms
cefalt.css
1052 ms
wap_image.js
548 ms
DropDown.js
548 ms
popupImg.js
547 ms
link.js
541 ms
inc_common_func.js
810 ms
conversion.js
16 ms
fbevents.js
73 ms
cefalt_intro_02.jpg
271 ms
cefalt_intro_12.jpg
280 ms
gif_intro_gioithieu.gif
267 ms
gif_intro_more.gif
271 ms
gif_intro_tinmoi.gif
269 ms
gif_bullet2.gif
279 ms
cefalt_intro_04.jpg
527 ms
cefalt_intro_13.jpg
527 ms
81 ms
analytics.js
61 ms
list.htm
514 ms
all_arrow.html
510 ms
gif_intro_bg.gif
505 ms
cefalt_intro_11.jpg
503 ms
53 ms
51 ms
50 ms
56 ms
collect
29 ms
jpg_intro_01.jpg
303 ms
jpg_intro_02.jpg
524 ms
jpg_intro_03.jpg
571 ms
jpg_intro_04.jpg
792 ms
jpg_intro_05.jpg
575 ms
btn_left_over.gif
286 ms
btn_stop_over.gif
549 ms
btn_right_over.gif
560 ms
btn_left.gif
777 ms
btn_stop.gif
809 ms
btn_right.gif
819 ms
1PIXEL.gif
827 ms
roundtrip.js
9 ms
cefalt.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.
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
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
cefalt.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
Browser errors were logged to the console
Page has valid source maps
cefalt.edu.vn SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
VI
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cefalt.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 Cefalt.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.
cefalt.edu.vn
Open Graph description is not detected on the main page of CEFALT. 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: