Tools & Wizards About Us
duan.vn screenshot

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 42

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

duan.vn

Trang chủ

Page Load Speed

15.3 sec in total

First Response

775 ms

Resources Loaded

12.7 sec

Page Rendered

1.9 sec

duan.vn screenshot

About Website

Click here to check amazing Duan content. Otherwise, check out these important facts you probably never knew about duan.vn

Mua bán, đầu tư dự án, mua bán công ty, mua công ty, bán công ty, mua doanh nghiệp, bán doanh nghiệp, mua nhà hàng, bán khách sạn, mua khách sạn, bán resort, mua resort, mua dự án nghỉ dưỡng, bán dự á...

Visit duan.vn

Key Findings

We analyzed Duan.vn page load time and found that the first response time was 775 ms and then it took 14.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

duan.vn performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value8.3 s

2/100

25%

SI (Speed Index)

Value14.5 s

1/100

10%

TBT (Total Blocking Time)

Value640 ms

46/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value25.8 s

0/100

10%

Network Requests Diagram

duan.vn

775 ms

duan.vn

3079 ms

bootstrap-grid.css

518 ms

font-awesome.css

781 ms

theme.css

1066 ms

Our browser made a total of 95 requests to load all elements on the main page. We found that 84% of them (80 requests) were addressed to the original Duan.vn, 2% (2 requests) were made to Googletagmanager.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (5.1 sec) belongs to the original domain Duan.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 470.0 kB (5%)

Content Size

10.3 MB

After Optimization

9.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Duan.vn main page is 10.3 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. 55% of websites need less resources to load. Images take 10.0 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 119.7 kB

  • Original 144.6 kB
  • After minification 130.4 kB
  • After compression 25.0 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 119.7 kB or 83% of the original size.

Image Optimization

-3%

Potential reduce by 347.7 kB

  • Original 10.0 MB
  • After minification 9.7 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. Duan images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 469 B

  • Original 108.1 kB
  • After minification 108.1 kB
  • After compression 107.7 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

-4%

Potential reduce by 2.2 kB

  • Original 59.0 kB
  • After minification 59.0 kB
  • After compression 56.8 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. Duan.vn has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 18 (20%)

Requests Now

91

After Optimization

73

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 91 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Duan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

duan.vn

duan.vn

775 ms

duan.vn

duan.vn

3079 ms

bootstrap-grid.css

bootstrap-grid.css

518 ms

font-awesome.css

font-awesome.css

781 ms

theme.css

theme.css

1066 ms

style.css

style.css

828 ms

jquery-3.4.1.min.js

jquery-3.4.1.min.js

1123 ms

js

js

59 ms

countup.js

countup.js

845 ms

jquery.modal.min.js

jquery.modal.min.js

591 ms

jquery.modal.css

jquery.modal.css

773 ms

jquery.modal.theme-xenon.css

jquery.modal.theme-xenon.css

847 ms

logo.png

logo.png

313 ms

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355 ms

home-banner.jpg

home-banner.jpg

3266 ms

668 ms

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368 ms

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1489 ms

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2613 ms

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3571 ms

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1976 ms

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3296 ms

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4242 ms

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3184 ms

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3464 ms

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3793 ms

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3918 ms

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4463 ms

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4567 ms

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4529 ms

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69 ms

analytics.js

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60 ms

js15_as.js

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139 ms

collect

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117 ms

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4269 ms

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4315 ms

xfbml.customerchat.js

xfbml.customerchat.js

22 ms

4340840.php

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100 ms

userchat.php

userchat.php

4710 ms

116 ms

cc_410.js

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85 ms

242 ms

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4281 ms

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4293 ms

215 ms

tag.min.js

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18 ms

afwu.js

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49 ms

401 ms

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4250 ms

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4091 ms

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18 ms

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4282 ms

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4272 ms

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4165 ms

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4184 ms

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4920 ms

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4179 ms

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Hop%20dong%20M%26a%20trong%20mua%20ban%20sap%20nha%CC%A3%CC%82p%20doanh%20nghie%CC%A3%CC%82p%20(19).jpg

3585 ms

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3268 ms

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2949 ms

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3513 ms

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3753 ms

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2947 ms

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3173 ms

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2820 ms

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2863 ms

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2847 ms

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3484 ms

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3171 ms

Accessibility Review

duan.vn accessibility score

61

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

duan.vn best practices score

42

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

duan.vn SEO score

84

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    VI

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Duan.vn can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and it does not match the claimed English language. Our system also found out that Duan.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

duan.vn

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