Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 72

    SEO

    Google-friendlier than
    31% of websites

drivadz.vn

Drivadz | Quảng cáo trên xe hơi | quangcaoxehoi | sanchoiquangcao

Page Load Speed

61.2 sec in total

First Response

886 ms

Resources Loaded

59.6 sec

Page Rendered

788 ms

drivadz.vn screenshot

About Website

Visit drivadz.vn now to see the best up-to-date Drivadz content for Vietnam and also check out these interesting facts you probably never knew about drivadz.vn

Drivadz – Sân chơi quảng cáo giúp bạn kiếm tiền bằng xe cá nhân – Là hình thức quảng cáo mới hiệu quả

Visit drivadz.vn

Key Findings

We analyzed Drivadz.vn page load time and found that the first response time was 886 ms and then it took 60.3 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. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

drivadz.vn performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value37.3 s

0/100

25%

SI (Speed Index)

Value15.5 s

0/100

10%

TBT (Total Blocking Time)

Value1,020 ms

26/100

30%

CLS (Cumulative Layout Shift)

Value0.512

15/100

15%

TTI (Time to Interactive)

Value8.2 s

41/100

10%

Network Requests Diagram

drivadz.vn

886 ms

drivadz.vn

4508 ms

bootstrap.min.css

37 ms

styles.css

700 ms

jquery-3.4.0.js

36 ms

Our browser made a total of 480 requests to load all elements on the main page. We found that 97% of them (467 requests) were addressed to the original Drivadz.vn, 1% (5 requests) were made to Google-analytics.com and 0% (2 requests) were made to Stackpath.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (19.6 sec) belongs to the original domain Drivadz.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 6.0 MB (6%)

Content Size

107.2 MB

After Optimization

101.3 MB

In fact, the total size of Drivadz.vn main page is 107.2 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. Only a small number of websites need less resources to load. Images take 106.9 MB which makes up the majority of the site volume.

HTML Optimization

-93%

Potential reduce by 270.9 kB

  • Original 290.3 kB
  • After minification 238.6 kB
  • After compression 19.4 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 51.7 kB, which is 18% 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 270.9 kB or 93% of the original size.

Image Optimization

-5%

Potential reduce by 5.7 MB

  • Original 106.9 MB
  • After minification 101.2 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. Drivadz images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 50 B

  • Original 21.0 kB
  • After minification 21.0 kB
  • After compression 20.9 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

-15%

Potential reduce by 1.6 kB

  • Original 10.1 kB
  • After minification 10.1 kB
  • After compression 8.6 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. Drivadz.vn needs all CSS files to be minified and compressed as it can save up to 1.6 kB or 15% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (3%)

Requests Now

474

After Optimization

458

The browser has sent 474 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Drivadz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

drivadz.vn accessibility score

61

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-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

drivadz.vn best practices score

58

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

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

drivadz.vn SEO score

72

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Drivadz.vn can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Drivadz.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 description is not detected on the main page of Drivadz. 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: