Tools & Wizards About Us
vdo.vn screenshot

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

vdo.vn

VDO - VDO - Cung cấp giải pháp công nghệ máy chủ thiết bị cloud server

Page Load Speed

14.2 sec in total

First Response

564 ms

Resources Loaded

12.6 sec

Page Rendered

1.1 sec

vdo.vn screenshot

About Website

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

Trang chủ VDO cung cấp các thông tin tổng quan về VDO: Lịch sử hình thành, các sản phẩm, hệ thống phân phối, đối tác chiến lược, khách hàng thân thiết.

Visit vdo.vn

Key Findings

We analyzed Vdo.vn page load time and found that the first response time was 564 ms and then it took 13.7 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

vdo.vn performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

10/100

10%

LCP (Largest Contentful Paint)

Value42.7 s

0/100

25%

SI (Speed Index)

Value10.8 s

6/100

10%

TBT (Total Blocking Time)

Value3,110 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.349

32/100

15%

TTI (Time to Interactive)

Value16.6 s

5/100

10%

Network Requests Diagram

vdo.vn

564 ms

dis.vdo.com.vn

2213 ms

output.css

958 ms

common.css

716 ms

all.css

393 ms

Our browser made a total of 160 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Vdo.vn, 66% (105 requests) were made to Res.vdo.vn and 17% (27 requests) were made to Dis.vdo.com.vn. The less responsive or slowest element that took the longest time to load (8.3 sec) relates to the external source Res.vdo.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 5.7 MB (21%)

Content Size

27.9 MB

After Optimization

22.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vdo.vn main page is 27.9 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 26.6 MB which makes up the majority of the site volume.

HTML Optimization

-96%

Potential reduce by 850.1 kB

  • Original 882.7 kB
  • After minification 625.9 kB
  • After compression 32.6 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. This page needs HTML code to be minified as it can gain 256.7 kB, which is 29% 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 850.1 kB or 96% of the original size.

Image Optimization

-18%

Potential reduce by 4.8 MB

  • Original 26.6 MB
  • After minification 21.8 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, VDO needs image optimization as it can save up to 4.8 MB 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

-8%

Potential reduce by 29.9 kB

  • Original 382.1 kB
  • After minification 381.6 kB
  • After compression 352.2 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

-22%

Potential reduce by 19.6 kB

  • Original 88.8 kB
  • After minification 72.3 kB
  • After compression 69.2 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. Vdo.vn needs all CSS files to be minified and compressed as it can save up to 19.6 kB or 22% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (26%)

Requests Now

150

After Optimization

111

  • Images
  • JavaScript
  • CSS

The browser has sent 150 CSS, Javascripts, AJAX and image requests in order to completely render the main page of VDO. 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 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vdo.vn

vdo.vn

564 ms

dis.vdo.com.vn

dis.vdo.com.vn

2213 ms

output.css

output.css

958 ms

common.css

common.css

716 ms

all.css

all.css

393 ms

all.css

all.css

51 ms

tw-elements.min.css

tw-elements.min.css

69 ms

flexmasonry.css

flexmasonry.css

404 ms

owl.carousel.min.css

owl.carousel.min.css

717 ms

owl.theme.default.min.css

owl.theme.default.min.css

725 ms

card.css

card.css

727 ms

font-awesome.css

font-awesome.css

746 ms

all.css

all.css

27 ms

flexmasonry.css

flexmasonry.css

13 ms

sdk.js

sdk.js

1640 ms

tw-elements.umd.min.js

tw-elements.umd.min.js

43 ms

jquery.min.js

jquery.min.js

721 ms

owl.carousel.min.js

owl.carousel.min.js

485 ms

flowbite.min.js

flowbite.min.js

28 ms

rotate-icon.js

rotate-icon.js

485 ms

menu.js

menu.js

490 ms

scroll.js

scroll.js

588 ms

modal-search.js

modal-search.js

711 ms

js

js

72 ms

css

css

39 ms

gtm.js

gtm.js

95 ms

banner-1-desktop-884fdf7b66981.png

banner-1-desktop-884fdf7b66981.png

2033 ms

down-circle-button.png

down-circle-button.png

247 ms

contact-phone.png

contact-phone.png

266 ms

contact-zalo.png

contact-zalo.png

267 ms

contact-message.png

contact-message.png

266 ms

card-contact-phone.png

card-contact-phone.png

369 ms

card-contact-zalo.png

card-contact-zalo.png

378 ms

card-contact-message.png

card-contact-message.png

506 ms

dot.png

dot.png

509 ms

logo-footer.png

logo-footer.png

506 ms

xac-nhan.png

xac-nhan.png

514 ms

facebook.png

facebook.png

608 ms

twitter.png

twitter.png

617 ms

instagram.png

instagram.png

745 ms

banner-1-desktop-884fdebd89abe.png

banner-1-desktop-884fdebd89abe.png

1938 ms

vi.png

vi.png

982 ms

en.png

en.png

999 ms

vdo-logo-8b099beccc311.gif

vdo-logo-8b099beccc311.gif

8290 ms

Doi-tac_Gigabyte-89bea2f32b38b.png

Doi-tac_Gigabyte-89bea2f32b38b.png

1007 ms

Doi-tac_Inwin-89bea25157027.png

Doi-tac_Inwin-89bea25157027.png

1551 ms

Doi-tac_Samsung-89bea13d3771c.png

Doi-tac_Samsung-89bea13d3771c.png

1553 ms

Doi-tac_Micron-89be9c331eda1.png

Doi-tac_Micron-89be9c331eda1.png

1553 ms

Intel%C2%AE-Server-Board-S2600WF0R--8b90a0bb5a55c.jpg

Intel%C2%AE-Server-Board-S2600WF0R--8b90a0bb5a55c.jpg

1697 ms

Intel%C2%AE-Server-Board-S2600WF0R--8b909b543bb68.jpg

Intel%C2%AE-Server-Board-S2600WF0R--8b909b543bb68.jpg

1758 ms

W291-Z00_rev.C00-01-87208dd50124c.png

W291-Z00_rev.C00-01-87208dd50124c.png

4148 ms

Icon-1.png

Icon-1.png

1938 ms

Icon-2.png

Icon-2.png

1959 ms

Icon-3.png

Icon-3.png

2171 ms

Icon-4.png

Icon-4.png

2174 ms

G292-Z45_rev.ICU1-01-870acdbb9eb11.png

G292-Z45_rev.ICU1-01-870acdbb9eb11.png

2919 ms

S472-Z30_rev.A00-01-870a4732758be.png

S472-Z30_rev.A00-01-870a4732758be.png

3481 ms

R282-P92_rev.100-01-86f1fe5ad8afa.png

R282-P92_rev.100-01-86f1fe5ad8afa.png

2647 ms

TO24-JD0_rev.100-01-86bcf5a3e8e42.png

TO24-JD0_rev.100-01-86bcf5a3e8e42.png

3350 ms

IW-RA100_01-87a1fb8b84c30.png

IW-RA100_01-87a1fb8b84c30.png

2883 ms

IW-RA102_01-87a211fa7968f.png

IW-RA102_01-87a211fa7968f.png

3121 ms

IW-RF100_01-87a22663df933.png

IW-RF100_01-87a22663df933.png

3162 ms

IW-RF100S_01-87a23486a186f.png

IW-RF100S_01-87a23486a186f.png

3358 ms

IW-R200N_01-87a25000b8351.png

IW-R200N_01-87a25000b8351.png

3408 ms

IW-R200-01N_01-87a2dc9dfef01.png

IW-R200-01N_01-87a2dc9dfef01.png

3825 ms

IW-R200-02N_01-87a2f36ee6bd2.png

IW-R200-02N_01-87a2f36ee6bd2.png

3597 ms

IW-R300N_01-87a305e9343d3.jpg

IW-R300N_01-87a305e9343d3.jpg

3649 ms

IW-R300-01N_01-87a3133ae16f9.jpg

IW-R300-01N_01-87a3133ae16f9.jpg

3732 ms

Web-Banner-[Recovered]-01-8c48c47e572e4.png

Web-Banner-[Recovered]-01-8c48c47e572e4.png

3838 ms

W331-Z00_rev.100-01-87205126594fa.png

W331-Z00_rev.100-01-87205126594fa.png

4137 ms

W332-Z00_rev.100-01-8720622fd9139.png

W332-Z00_rev.100-01-8720622fd9139.png

5495 ms

W291-Z00_rev.B00-01-87207c1a45313.png

W291-Z00_rev.B00-01-87207c1a45313.png

4075 ms

S251-3O0_rev.IBC1-01-870a337ad1f46.png

S251-3O0_rev.IBC1-01-870a337ad1f46.png

4080 ms

S251-3O0_rev.IBH1-01-870a3b38a3a2c.png

S251-3O0_rev.IBH1-01-870a3b38a3a2c.png

4317 ms

S251-3O0_rev.IBC1-01-870a50cf0b0e0.png

S251-3O0_rev.IBC1-01-870a50cf0b0e0.png

4320 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpyw.ttf

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpyw.ttf

23 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpyw.ttf

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpyw.ttf

43 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrzjJ5llpyw.ttf

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrzjJ5llpyw.ttf

43 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1517 ms

Web-Banner-[Recovered]-02-8c48c79cfeaab.png

Web-Banner-[Recovered]-02-8c48c79cfeaab.png

3402 ms

Web-Banner-[Recovered]-03-8c48c6f198a8c.png

Web-Banner-[Recovered]-03-8c48c6f198a8c.png

3874 ms

mini-2-86bc085c0fd57.png

mini-2-86bc085c0fd57.png

3553 ms

page.widget.zalo.me

page.widget.zalo.me

1393 ms

za.js

za.js

1119 ms

js

js

136 ms

mini-3-86bc1ba0ad0f5.png

mini-3-86bc1ba0ad0f5.png

3011 ms

mini-7-86bc2b8abb414.png

mini-7-86bc2b8abb414.png

3073 ms

500-86bc3733674d8.png

500-86bc3733674d8.png

3243 ms

Mini-19-86bc40a098cf8.png

Mini-19-86bc40a098cf8.png

3042 ms

mini-15-86bc4b491cc77.png

mini-15-86bc4b491cc77.png

2957 ms

mini-20-86bc58e14cdb3.png

mini-20-86bc58e14cdb3.png

3101 ms

mini-16-86bc66759647b.png

mini-16-86bc66759647b.png

3096 ms

500-86bccb9aaafb6.png

500-86bccb9aaafb6.png

3151 ms

Mini-4-86bcdb5810032.png

Mini-4-86bcdb5810032.png

3388 ms

Industiral-Wi-Fi-6E-89b127a90c71b.png

Industiral-Wi-Fi-6E-89b127a90c71b.png

3102 ms

AI-Edge-Wi-Fi-6E-89b12e8da4132.png

AI-Edge-Wi-Fi-6E-89b12e8da4132.png

3340 ms

css2

css2

89 ms

za.js

za.js

253 ms

sdk-server-1.0.0.js

sdk-server-1.0.0.js

1093 ms

cphandler.js

cphandler.js

262 ms

zinit.js

zinit.js

523 ms

all.min.css

all.min.css

1009 ms

main.d49f197b.chunk.css

main.d49f197b.chunk.css

1010 ms

2.ef1b18a1.chunk.js

2.ef1b18a1.chunk.js

1795 ms

main.e5889962.chunk.js

main.e5889962.chunk.js

1029 ms

IoT-Wi-Fi-6-89b134630ff4c.png

IoT-Wi-Fi-6-89b134630ff4c.png

2713 ms

Wi-Fi-6E-Dipole-Antenna-89b137b7a0f6d.png

Wi-Fi-6E-Dipole-Antenna-89b137b7a0f6d.png

2624 ms

Wi-Fi-6E-PIFA-Antenna-89b13bcd4c3cc.png

Wi-Fi-6E-PIFA-Antenna-89b13bcd4c3cc.png

2921 ms

Wireless-USBHDMI-89b14762c78d8.jpg

Wireless-USBHDMI-89b14762c78d8.jpg

2480 ms

Wireless-USB-89b14d113914e.png

Wireless-USB-89b14d113914e.png

2586 ms

WiGigHub-89b1525c166e0.png

WiGigHub-89b1525c166e0.png

2394 ms

WiGig-USB-Adapter-89b156da1724b.jpg

WiGig-USB-Adapter-89b156da1724b.jpg

2398 ms

IP-COM-Expander-Lite-89b15a6d99209.jpg

IP-COM-Expander-Lite-89b15a6d99209.jpg

2434 ms

TO24-JD1_rev.100-01-86bd31d72fc80.png

TO24-JD1_rev.100-01-86bd31d72fc80.png

2506 ms

CMT4034_rev.1.0-01-86bc88710537e.png

CMT4034_rev.1.0-01-86bc88710537e.png

2405 ms

CMT4032_rev.1.0-01-86bc8ff4be504.png

CMT4032_rev.1.0-01-86bc8ff4be504.png

2345 ms

CLNCA12_rev.1.x-01-86bc984f3a409.png

CLNCA12_rev.1.x-01-86bc984f3a409.png

4036 ms

MS73-HB2_rev.1.x-01-870a1e9eaea47.png

MS73-HB2_rev.1.x-01-870a1e9eaea47.png

2274 ms

MS73-HB0_rev.1.x-01-870a129fb5029.png

MS73-HB0_rev.1.x-01-870a129fb5029.png

2402 ms

MS73-HB1_rev.1.x-01-870a183daee5e.png

MS73-HB1_rev.1.x-01-870a183daee5e.png

2436 ms

MS33-AR0_rev.1.x-01-870a286286db3.png

MS33-AR0_rev.1.x-01-870a286286db3.png

3679 ms

MS33-AR1_rev.1.x-01-870a2e1d3176c.png

MS33-AR1_rev.1.x-01-870a2e1d3176c.png

2218 ms

MS03-CE0_rev.1.x-01-870a33ec6db87.png

MS03-CE0_rev.1.x-01-870a33ec6db87.png

2366 ms

he-thong-phan-phoi-desktop-84acd1920531f.png

he-thong-phan-phoi-desktop-84acd1920531f.png

2314 ms

1-Bo-CA-8b45964ea4f5b.png

1-Bo-CA-8b45964ea4f5b.png

2431 ms

5-TPBank-8b459559fc3cc.png

5-TPBank-8b459559fc3cc.png

2373 ms

2-bo-tu-lenh-86-8b45960ba1114.png

2-bo-tu-lenh-86-8b45960ba1114.png

2315 ms

6-Naspas-8b459519e7460.png

6-Naspas-8b459519e7460.png

2433 ms

3-Bo-Y-Te-8b4595d1b6f84.png

3-Bo-Y-Te-8b4595d1b6f84.png

2369 ms

7-vnpay-8b4594d819f41.png

7-vnpay-8b4594d819f41.png

2318 ms

4-Bo-GDDT-8b4595967e4ed.png

4-Bo-GDDT-8b4595967e4ed.png

2421 ms

8-vnpt-8b45946f5e660.png

8-vnpt-8b45946f5e660.png

2351 ms

14-gtel-ict-8b45924d2286f.png

14-gtel-ict-8b45924d2286f.png

2476 ms

15-Mobifone-8b4591f7bab4a.png

15-Mobifone-8b4591f7bab4a.png

2394 ms

16-vtc-8b45919b0d9c6.png

16-vtc-8b45919b0d9c6.png

2403 ms

17-htc-itc-8b45914b12918.png

17-htc-itc-8b45914b12918.png

2458 ms

9-viettel-8b45933bbe247.png

9-viettel-8b45933bbe247.png

2390 ms

23-pvi-8b458f6555697.png

23-pvi-8b458f6555697.png

2317 ms

10-FPT-8b4592fda9ecc.png

10-FPT-8b4592fda9ecc.png

2451 ms

24-petrovietnam-8b458e8e92a1a.png

24-petrovietnam-8b458e8e92a1a.png

2403 ms

12-Telehouse-8b458e082970f.png

12-Telehouse-8b458e082970f.png

2403 ms

25-vng-8b458d6229035.png

25-vng-8b458d6229035.png

2498 ms

13-cmc-8b4592a8c49cf.png

13-cmc-8b4592a8c49cf.png

2408 ms

26-vin-group-8b458d13240ef.png

26-vin-group-8b458d13240ef.png

2307 ms

31-evn-8b4580986ea3a.png

31-evn-8b4580986ea3a.png

2384 ms

32-dai-hoc-y-8b457fb1e3f1d.png

32-dai-hoc-y-8b457fb1e3f1d.png

2391 ms

18-eco-dc-8b4590cde6765.png

18-eco-dc-8b4590cde6765.png

2412 ms

19-vietnam-mobile-8b45907ac0374.png

19-vietnam-mobile-8b45907ac0374.png

2421 ms

20-benh-vien-hop-luc-8b4590297ced3.png

20-benh-vien-hop-luc-8b4590297ced3.png

2305 ms

21-bach-mai-8b458fd466af3.png

21-bach-mai-8b458fd466af3.png

2374 ms

27-vin-ai-8b458c6ea11a9.png

27-vin-ai-8b458c6ea11a9.png

2383 ms

28-xelex-8b458c1756e34.png

28-xelex-8b458c1756e34.png

2392 ms

29-co-yeu-viet-nam-8b458bb9c23ec.png

29-co-yeu-viet-nam-8b458bb9c23ec.png

2266 ms

30-DH-Vinh-8b458171f3b43.png

30-DH-Vinh-8b458171f3b43.png

2160 ms

Anh-1a-8b696fb79f571.jpg

Anh-1a-8b696fb79f571.jpg

2021 ms

Anh-1-8b695282be1ab.jpg

Anh-1-8b695282be1ab.jpg

2070 ms

Cloud-PBX111-8a87f55833a3a.png

Cloud-PBX111-8a87f55833a3a.png

1968 ms

Micron-89727d7dd7b88.png

Micron-89727d7dd7b88.png

2466 ms

ss-test-897074547489f.png

ss-test-897074547489f.png

1997 ms

Gigabyte-hop-tac-VDO-897281951db1f.png

Gigabyte-hop-tac-VDO-897281951db1f.png

1884 ms

Accessibility Review

vdo.vn accessibility score

77

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-*] attributes do not have valid values

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

<frame> or <iframe> elements do not have a title

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

vdo.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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

vdo.vn SEO score

90

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

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

    VI

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vdo.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 Vdo.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

vdo.vn

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