Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

daidung.vn

TRANG CHỦ | DaiDung Corporation

Page Load Speed

8.7 sec in total

First Response

545 ms

Resources Loaded

7.7 sec

Page Rendered

493 ms

daidung.vn screenshot

About Website

Welcome to daidung.vn homepage info - get ready to check Dai Dung best content for Vietnam right away, or after learning these important things about daidung.vn

Tập đoàn Đại Dũng chuyên cung cấp dịch vụ tổng thầu và sản phẩm kết cấu thép đáp ứng các yêu cầu kỹ thuật cao, đảm bảo tiêu chuẩn chất lượng

Visit daidung.vn

Key Findings

We analyzed Daidung.vn page load time and found that the first response time was 545 ms and then it took 8.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

daidung.vn performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.3 s

3/100

10%

LCP (Largest Contentful Paint)

Value46.0 s

0/100

25%

SI (Speed Index)

Value32.3 s

0/100

10%

TBT (Total Blocking Time)

Value2,560 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value36.7 s

0/100

10%

Network Requests Diagram

daidung.vn

545 ms

daidung.vn

1028 ms

daidung.com

1358 ms

styles.css

261 ms

style.css

525 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Daidung.vn, 65% (58 requests) were made to Daidung.com and 7% (6 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (3 sec) relates to the external source Daidung.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 727.6 kB (18%)

Content Size

4.1 MB

After Optimization

3.4 MB

In fact, the total size of Daidung.vn main page is 4.1 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. 80% 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 3.7 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 139.7 kB

  • Original 169.2 kB
  • After minification 154.1 kB
  • After compression 29.5 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 139.7 kB or 83% of the original size.

Image Optimization

-16%

Potential reduce by 585.1 kB

  • Original 3.7 MB
  • After minification 3.1 MB

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, Dai Dung needs image optimization as it can save up to 585.1 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 2.9 kB

  • Original 166.6 kB
  • After minification 166.5 kB
  • After compression 163.7 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 59.5 kB
  • After minification 59.5 kB
  • After compression 59.5 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. Daidung.vn has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 32 (41%)

Requests Now

78

After Optimization

46

The browser has sent 78 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dai Dung. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

daidung.vn accessibility score

85

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

daidung.vn best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

daidung.vn SEO score

98

Search Engine Optimization Advices

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    VI

  • Language Claimed

    VI

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Daidung.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 Daidung.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.

Social Sharing Optimization

Open Graph data is detected on the main page of Dai Dung. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: