9.8 sec in total
2.4 sec
6.6 sec
718 ms
Visit simonline.vn now to see the best up-to-date Sim Online content and also check out these interesting facts you probably never knew about simonline.vn
Kho sim lớn nhất Việt Nam
Visit simonline.vnWe analyzed Simonline.vn page load time and found that the first response time was 2.4 sec and then it took 7.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
simonline.vn performance score
name
value
score
weighting
Value3.6 s
32/100
10%
Value6.6 s
8/100
25%
Value7.1 s
31/100
10%
Value180 ms
91/100
30%
Value0.102
89/100
15%
Value5.1 s
76/100
10%
2426 ms
816 ms
1363 ms
1412 ms
546 ms
Our browser made a total of 45 requests to load all elements on the main page. We found that 93% of them (42 requests) were addressed to the original Simonline.vn, 4% (2 requests) were made to Opi.yahoo.com and 2% (1 request) were made to Muabansimdep.vn. The less responsive or slowest element that took the longest time to load (3.7 sec) belongs to the original domain Simonline.vn.
Page size can be reduced by 600.0 kB (52%)
1.2 MB
558.7 kB
In fact, the total size of Simonline.vn main page is 1.2 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. 20% of websites need less resources to load. Images take 480.6 kB which makes up the majority of the site volume.
Potential reduce by 226.3 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 226.3 kB or 72% of the original size.
Potential reduce by 99.5 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. Obviously, Sim Online needs image optimization as it can save up to 99.5 kB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 218.5 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 218.5 kB or 72% of the original size.
Potential reduce by 55.7 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. Simonline.vn needs all CSS files to be minified and compressed as it can save up to 55.7 kB or 87% of the original size.
Number of requests can be reduced by 11 (26%)
42
31
The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sim Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.
simonline.vn
2426 ms
jquery-ui-1.8.13.custom.css
816 ms
jquery-1.5.1.min.js
1363 ms
jquery-ui-1.8.13.custom.min.js
1412 ms
ajax.js
546 ms
style.css
588 ms
default.css
821 ms
lighting.css
881 ms
online
180 ms
ScreenHunter_002.bmp
1841 ms
online
177 ms
bg.jpg
810 ms
banner_03_en.png
2891 ms
menu_blue_r.png
322 ms
menu_default_r.png
324 ms
catemodule_footer.jpg
322 ms
catemodule_head.gif
322 ms
ui-bg_inset-hard_75_e2ecf6_1x100.png
543 ms
030608-Banner_animation(1).gif
1080 ms
sampf953cbb0c6adc36e.jpg
1388 ms
simphongthuy.gif
2320 ms
Viettel.gif
814 ms
MobiFone.gif
1077 ms
VinaPhone.gif
1084 ms
Gmobile.gif
1347 ms
VietNamobile.gif
1350 ms
.gif
1354 ms
010608-gth.jpg
1619 ms
danhchoqc.gif
1620 ms
samp7c85223dd0199302.jpg
2162 ms
samp35bf7644464e08c6.jpg
1927 ms
sodepad.jpg
2156 ms
counter.php
1877 ms
intro_header.jpg
2068 ms
ui-bg_flat_100_409fdd_40x100.png
2103 ms
ui-bg_inset-soft_100_0166b4_1x100.png
2332 ms
ui-bg_inset-soft_100_98d6e1_1x100.png
2337 ms
search_footer.jpg
2341 ms
search_header.jpg
2374 ms
footer_02.png
3718 ms
fullborder_bg_right1.gif
2602 ms
fullborder_bg1.gif
2611 ms
button.gif
2615 ms
aindex.php
2457 ms
counter.gif
1074 ms
simonline.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
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.
simonline.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
General
Impact
Issue
Detected JavaScript libraries
simonline.vn SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
robots.txt is not valid
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
VI
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Simonline.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 Simonline.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.
simonline.vn
Open Graph description is not detected on the main page of Sim Online. 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: