9.4 sec in total
1.4 sec
7.7 sec
323 ms
Welcome to datafan.vn homepage info - get ready to check Datafan best content for Vietnam right away, or after learning these important things about datafan.vn
Quạt Công Nghiệp Đạt Tâm – DATAFAN luôn phấn đấu cung cấp các sản phẩm, dịch vụ chất lượng nhằm đáp ứng những yêu cầu ngày càng cao của Quý khách. Với đội ngũ
Visit datafan.vnWe analyzed Datafan.vn page load time and found that the first response time was 1.4 sec and then it took 8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
datafan.vn performance score
name
value
score
weighting
Value9.2 s
0/100
10%
Value18.5 s
0/100
25%
Value14.4 s
1/100
10%
Value1,760 ms
10/100
30%
Value0.838
4/100
15%
Value16.1 s
6/100
10%
1369 ms
333 ms
490 ms
381 ms
384 ms
Our browser made a total of 141 requests to load all elements on the main page. We found that 80% of them (113 requests) were addressed to the original Datafan.vn, 9% (13 requests) were made to Fonts.gstatic.com and 3% (4 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Datafan.vn.
Page size can be reduced by 1.5 MB (41%)
3.8 MB
2.3 MB
In fact, the total size of Datafan.vn main page is 3.8 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.8 MB which makes up the majority of the site volume.
Potential reduce by 93.7 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 16.3 kB, which is 15% 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 93.7 kB or 84% of the original size.
Potential reduce by 77.5 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. Datafan images are well optimized though.
Potential reduce by 860.7 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 860.7 kB or 69% of the original size.
Potential reduce by 517.3 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. Datafan.vn needs all CSS files to be minified and compressed as it can save up to 517.3 kB or 83% of the original size.
Number of requests can be reduced by 74 (73%)
102
28
The browser has sent 102 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Datafan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and from 31 to 1 for CSS and as a result speed up the page load time.
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datafan.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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
The document uses <meta http-equiv="refresh">
datafan.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
Page has valid source maps
datafan.vn SEO score
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 Datafan.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 Datafan.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.
datafan.vn
Open Graph data is detected on the main page of Datafan. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: