Tools & Wizards About Us
web4s.vn screenshot

Report Summary

  • 59

    Performance

    Renders faster than
    74% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

web4s.vn

Thiết kế website chuyên nghiệp chuẩn Seo - Tạo Website free - Web4s

Page Load Speed

10.5 sec in total

First Response

2.7 sec

Resources Loaded

6.7 sec

Page Rendered

1 sec

web4s.vn screenshot

About Website

Welcome to web4s.vn homepage info - get ready to check Web4s best content for Vietnam right away, or after learning these important things about web4s.vn

Công ty thiết kế website chuyên nghiệp ⭐-⭐-⭐ Làm Web uy tín với dịch vụ thiết kế website giá rẻ 9K/Ngày ⭕ Thiết kế trang Web chất lượng tặng Domain, Hosting, Umail..

Visit web4s.vn

Key Findings

We analyzed Web4s.vn page load time and found that the first response time was 2.7 sec and then it took 7.8 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

web4s.vn performance score

59

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

51/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

10/100

25%

SI (Speed Index)

Value7.1 s

31/100

10%

TBT (Total Blocking Time)

Value190 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.7 s

56/100

10%

Network Requests Diagram

web4s.vn

2694 ms

css

918 ms

css

664 ms

css

717 ms

css

633 ms

Our browser made a total of 85 requests to load all elements on the main page. We found that 75% of them (64 requests) were addressed to the original Web4s.vn, 7% (6 requests) were made to Youtube.com and 4% (3 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Web4s.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 722.7 kB (20%)

Content Size

3.6 MB

After Optimization

2.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Web4s.vn main page is 3.6 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 2.9 MB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 183.2 kB

  • Original 250.8 kB
  • After minification 250.6 kB
  • After compression 67.6 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 183.2 kB or 73% of the original size.

Image Optimization

-18%

Potential reduce by 529.9 kB

  • Original 2.9 MB
  • After minification 2.4 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, Web4s needs image optimization as it can save up to 529.9 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 3.6 kB

  • Original 380.4 kB
  • After minification 380.4 kB
  • After compression 376.9 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

-6%

Potential reduce by 6.0 kB

  • Original 98.4 kB
  • After minification 98.4 kB
  • After compression 92.3 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. Web4s.vn has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 24 (30%)

Requests Now

79

After Optimization

55

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Web4s. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

web4s.vn

web4s.vn

2694 ms

css

css

918 ms

css

css

664 ms

css

css

717 ms

css

css

633 ms

css

css

744 ms

css_custom.css

css_custom.css

728 ms

js

js

1244 ms

api.js

api.js

52 ms

js

js

80 ms

api.js

api.js

18 ms

DMCABadgeHelper.min.js

DMCABadgeHelper.min.js

56 ms

js

js

598 ms

js

js

623 ms

js

js

659 ms

js

js

686 ms

js

js

850 ms

js

js

991 ms

js

js

1011 ms

dmca-badge-w100-5x1-01.png

dmca-badge-w100-5x1-01.png

55 ms

logo.png

logo.png

334 ms

khachsan02.png

khachsan02.png

1718 ms

noithat06.png

noithat06.png

1180 ms

yte02.png

yte02.png

1046 ms

yte01-0.png

yte01-0.png

890 ms

yensao01.png

yensao01.png

1432 ms

webapp-02.png

webapp-02.png

1303 ms

domain.svg

domain.svg

1145 ms

website-thien-chua-giao-2.jpg

website-thien-chua-giao-2.jpg

1281 ms

thiet-ke-website-ca-si-4.jpg

thiet-ke-website-ca-si-4.jpg

1376 ms

untitled-1.jpg

untitled-1.jpg

1422 ms

4.jpg

4.jpg

1521 ms

thiet-ke-website-bang-figma-5-jpg5.jpg

thiet-ke-website-bang-figma-5-jpg5.jpg

1547 ms

clone-website-la-gi-5.jpg

clone-website-la-gi-5.jpg

1614 ms

bia.jpg

bia.jpg

1665 ms

dich-vu-thiet-ke-website-phat-giao-4.jpg

dich-vu-thiet-ke-website-phat-giao-4.jpg

1670 ms

bct.png

bct.png

1756 ms

group-2111.png

group-2111.png

1792 ms

call.png

call.png

1852 ms

kho-giao-dien.png

kho-giao-dien.png

1905 ms

logo-bao-gia-website.png

logo-bao-gia-website.png

1908 ms

logo-6me4aonh.png

logo-6me4aonh.png

1961 ms

image-36.png

image-36.png

1992 ms

custom-hotline1.png

custom-hotline1.png

2036 ms

logo-color.png

logo-color.png

2091 ms

dung-thu.png

dung-thu.png

2147 ms

recaptcha__en.js

recaptcha__en.js

70 ms

fa-solid-900.woff

fa-solid-900.woff

2104 ms

fa-regular-400.woff

fa-regular-400.woff

2156 ms

tDKt9UdoPAE

tDKt9UdoPAE

182 ms

cutes.svg

cutes.svg

2166 ms

bann111.svg

bann111.svg

2213 ms

Group_5928-svg.webp

Group_5928-svg.webp

2171 ms

nopath-copy-4-2x.webp

nopath-copy-4-2x.webp

2230 ms

design.png

design.png

2234 ms

domain.png

domain.png

2286 ms

ionicons.ttf

ionicons.ttf

2269 ms

png-apple-iphone-13-front-view-mockup-31628678178s9vsrvqjj5-0.png

png-apple-iphone-13-front-view-mockup-31628678178s9vsrvqjj5-0.png

2305 ms

www-player.css

www-player.css

72 ms

www-embed-player.js

www-embed-player.js

94 ms

base.js

base.js

119 ms

hosting.png

hosting.png

2238 ms

ad_status.js

ad_status.js

149 ms

Xal8RkuvyCiU6W_GOvwH_DuhE1BN-1S9Ky9af2kVVy4.js

Xal8RkuvyCiU6W_GOvwH_DuhE1BN-1S9Ky9af2kVVy4.js

96 ms

embed.js

embed.js

49 ms

AIdro_npILhNxAvau5_SHeE18d_-_gxH2iXkIKmM9Fcm_18q3g=s68-c-k-c0x00ffffff-no-rj

AIdro_npILhNxAvau5_SHeE18d_-_gxH2iXkIKmM9Fcm_18q3g=s68-c-k-c0x00ffffff-no-rj

151 ms

KFOmCnqEu92Fr1Mu4mxPKTU1Kg.ttf

KFOmCnqEu92Fr1Mu4mxPKTU1Kg.ttf

114 ms

KFOlCnqEu92Fr1MmEU9fBBc9AMP6lQ.ttf

KFOlCnqEu92Fr1MmEU9fBBc9AMP6lQ.ttf

117 ms

id

id

100 ms

Create

Create

29 ms

GenerateIT

GenerateIT

15 ms

khac.png

khac.png

1748 ms

custer2.svg

custer2.svg

1596 ms

group-12-2x.jpg

group-12-2x.jpg

1544 ms

icone-01.png

icone-01.png

1533 ms

icone-02.png

icone-02.png

1497 ms

icone-03.png

icone-03.png

1509 ms

icone-04.png

icone-04.png

1507 ms

icone-05.png

icone-05.png

1462 ms

map.png

map.png

1507 ms

group-10751-2x.jpg

group-10751-2x.jpg

1659 ms

web-doanh-nghiep-svg.webp

web-doanh-nghiep-svg.webp

1476 ms

web-thiet-ke-tron-goi-svg.webp

web-thiet-ke-tron-goi-svg.webp

1436 ms

log_event

log_event

17 ms

gtm.js

gtm.js

51 ms

Accessibility Review

web4s.vn accessibility score

71

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

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

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

web4s.vn best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

web4s.vn SEO score

79

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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

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 Web4s.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 Web4s.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

web4s.vn

Open Graph data is detected on the main page of Web4s. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: