Tools & Wizards About Us
dem.vn screenshot

Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

dem.vn

Dem.vn - Website thương mại điện tử tiên phong về mua sắm online đệm và phụ kiện tại Việt Nam.

Page Load Speed

10.7 sec in total

First Response

1.3 sec

Resources Loaded

8.6 sec

Page Rendered

840 ms

dem.vn screenshot

About Website

Click here to check amazing Dem content for Vietnam. Otherwise, check out these important facts you probably never knew about dem.vn

Hệ thống siêu thị chăn ga gối đệm hàng đầu Việt Nam chuyên về kinh doanh, phân phối chăn ga gối đệm cao cấp luôn đem lại những sản phẩm sang trọng, tinh tế và an toàn cho sức khỏe người sử dụng.

Visit dem.vn

Key Findings

We analyzed Dem.vn page load time and found that the first response time was 1.3 sec and then it took 9.4 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

dem.vn performance score

0

Network Requests Diagram

dem.vn

1327 ms

ga.js

37 ms

bootstrap.min.css

495 ms

style.css

508 ms

style.css

517 ms

Our browser made a total of 176 requests to load all elements on the main page. We found that 73% of them (128 requests) were addressed to the original Dem.vn, 5% (9 requests) were made to Static.xx.fbcdn.net and 4% (7 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Dem.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 636.8 kB (19%)

Content Size

3.4 MB

After Optimization

2.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dem.vn main page is 3.4 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. 70% of websites need less resources to load. Images take 2.8 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 137.1 kB

  • Original 158.5 kB
  • After minification 107.1 kB
  • After compression 21.4 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 51.4 kB, which is 32% 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 137.1 kB or 86% of the original size.

Image Optimization

-8%

Potential reduce by 214.5 kB

  • Original 2.8 MB
  • After minification 2.6 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. Dem images are well optimized though.

JavaScript Optimization

-58%

Potential reduce by 149.3 kB

  • Original 258.3 kB
  • After minification 234.9 kB
  • After compression 109.0 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 149.3 kB or 58% of the original size.

CSS Optimization

-83%

Potential reduce by 135.9 kB

  • Original 164.2 kB
  • After minification 154.5 kB
  • After compression 28.2 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. Dem.vn needs all CSS files to be minified and compressed as it can save up to 135.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 51 (31%)

Requests Now

166

After Optimization

115

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 166 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dem. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dem.vn

dem.vn

1327 ms

ga.js

ga.js

37 ms

bootstrap.min.css

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495 ms

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SEO Factors

dem.vn SEO score

0

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 Dem.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 Dem.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

dem.vn

Open Graph description is not detected on the main page of Dem. 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: