Tools & Wizards About Us

Report Summary

  • 1

    Performance

    Renders faster than
    19% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

didongviet.vn

Didongviet.vn - Điện thoại, Tablet, Đồng hồ, Phụ kiện Giá Tốt

Page Load Speed

19.4 sec in total

First Response

1.4 sec

Resources Loaded

4.2 sec

Page Rendered

13.8 sec

About Website

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

Hệ thống cửa hàng bán lẻ điện thoại, máy tính bảng, đồng hồ, loa, phụ kiện, thiết bị công nghệ... chính hãng 100%. Cam kết Rẻ Hơn Các Loại Rẻ

Visit didongviet.vn

Key Findings

We analyzed Didongviet.vn page load time and found that the first response time was 1.4 sec and then it took 18 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

didongviet.vn performance score

1

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.4 s

2/100

10%

LCP (Largest Contentful Paint)

Value25.6 s

0/100

25%

SI (Speed Index)

Value21.9 s

0/100

10%

TBT (Total Blocking Time)

Value11,220 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value1.06

2/100

15%

TTI (Time to Interactive)

Value35.4 s

0/100

10%

Network Requests Diagram

didongviet.vn

1430 ms

gtm.js

87 ms

785a9a0e35eeefab.css

751 ms

4ee83b5ba2c1a11b.css

481 ms

polyfills-78c92fac7aa8fdd8.js

748 ms

Our browser made a total of 195 requests to load all elements on the main page. We found that 31% of them (60 requests) were addressed to the original Didongviet.vn, 66% (129 requests) were made to Cdn-v2.didongviet.vn and 1% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (2.6 sec) belongs to the original domain Didongviet.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.1 MB (15%)

Content Size

20.5 MB

After Optimization

17.5 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Didongviet.vn main page is 20.5 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 19.0 MB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 1.4 MB

  • Original 1.5 MB
  • After minification 1.5 MB
  • After compression 128.5 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 1.4 MB or 91% of the original size.

Image Optimization

-9%

Potential reduce by 1.7 MB

  • Original 19.0 MB
  • After minification 17.3 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. Didongviet images are well optimized though.

JavaScript Optimization

-44%

Potential reduce by 708 B

  • Original 1.6 kB
  • After minification 1.6 kB
  • After compression 918 B

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 708 B or 44% of the original size.

Requests Breakdown

Number of requests can be reduced by 56 (29%)

Requests Now

193

After Optimization

137

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 193 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Didongviet. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 38 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

didongviet.vn accessibility score

94

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA progressbar elements do not have accessible names.

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

Links do not have a discernible name

Best Practices

didongviet.vn best practices score

75

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

didongviet.vn SEO score

86

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

Document doesn't have a valid hreflang

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

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 Didongviet.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 Didongviet.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 Didongviet. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: