7.3 sec in total
2.1 sec
4.9 sec
337 ms
Welcome to dutoan.net homepage info - get ready to check Dutoan best content for Vietnam right away, or after learning these important things about dutoan.net
Công ty cổ phần tin học ETA chuyên cung cấp các phần mềm dự toán eta cho các doanh nghiệp xây dựng, thủy lợi, viễn thông. Liên hệ hotline để được tư vấn chi tiết
Visit dutoan.netWe analyzed Dutoan.net page load time and found that the first response time was 2.1 sec and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster. This domain responded with an error, which can significantly jeopardize Dutoan.net rating and web reputation
dutoan.net performance score
name
value
score
weighting
Value5.8 s
4/100
10%
Value10.0 s
0/100
25%
Value8.7 s
16/100
10%
Value130 ms
96/100
30%
Value0.247
50/100
15%
Value11.0 s
21/100
10%
2058 ms
491 ms
490 ms
65 ms
55 ms
Our browser made a total of 59 requests to load all elements on the main page. We found that 75% of them (44 requests) were addressed to the original Dutoan.net, 8% (5 requests) were made to Opi.yahoo.com and 7% (4 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Dutoan.net.
Page size can be reduced by 127.8 kB (29%)
434.9 kB
307.0 kB
In fact, the total size of Dutoan.net main page is 434.9 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 310.0 kB which makes up the majority of the site volume.
Potential reduce by 49.7 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 10.8 kB, which is 18% 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 49.7 kB or 85% of the original size.
Potential reduce by 62.1 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, Dutoan needs image optimization as it can save up to 62.1 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 10.3 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 10.3 kB or 17% of the original size.
Potential reduce by 5.7 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. Dutoan.net needs all CSS files to be minified and compressed as it can save up to 5.7 kB or 77% of the original size.
Number of requests can be reduced by 28 (50%)
56
28
The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dutoan. 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 JavaScripts and as a result speed up the page load time.
dutoan.net
2058 ms
Master.css
491 ms
forums.css
490 ms
conversion.js
65 ms
ga.js
55 ms
online
162 ms
online
174 ms
online
158 ms
online
175 ms
online
174 ms
bg-all.gif
255 ms
BGHeader.png
979 ms
logo.png
241 ms
arrow_down.gif
484 ms
submenu-bg.gif
496 ms
sl_BG.png
510 ms
sl_pd_1.png
1247 ms
sl_pd_2.png
771 ms
sl_pd_3.png
1212 ms
sl_pd_4.png
1253 ms
sl_pd_5.png
1242 ms
hotline2.gif
1022 ms
hcm1.gif
1230 ms
langson.gif
1273 ms
thainguyen.gif
1958 ms
hatinh.gif
1491 ms
danang.gif
1500 ms
binhdinh.gif
1509 ms
khanhhoa.png
1758 ms
dongnai.gif
1531 ms
cantho.gif
1737 ms
vinhlong.png
1750 ms
DoiTac.htm
1736 ms
cmdDownloads.PNG
1755 ms
TeamViewer.png
1966 ms
prev-next.gif
1968 ms
PageBorderLeft.PNG
1988 ms
msgBorder_TopLeft.PNG
1999 ms
msgBorder_Top.PNG
2006 ms
msgBorder_TopRight.PNG
2162 ms
msgBorder_Left.PNG
2205 ms
msgBorder_Right.PNG
2206 ms
msgBorder_BottomLeft.PNG
2246 ms
msgBorder_Bottom.PNG
2257 ms
msgBorder_BottomRight.PNG
2256 ms
pnRight_Center.PNG
2412 ms
js15.js
49 ms
__utm.gif
30 ms
__utm.gif
56 ms
__utm.gif
46 ms
1946220.php
19 ms
70 ms
cc_8.js
25 ms
36 ms
pnRight_Bottom.PNG
2241 ms
PageBorderRight.PNG
2244 ms
FooterTop.PNG
2041 ms
footerbg.gif
2066 ms
rdsic.jpg
1026 ms
dutoan.net accessibility score
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
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
dutoan.net 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
dutoan.net 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
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dutoan.net 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 Dutoan.net 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.
dutoan.net
Open Graph description is not detected on the main page of Dutoan. 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: