Tools & Wizards About Us

Report Summary

  • 36

    Performance

    Renders faster than
    55% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

viantech.vn

Bảo hộ lao động Bình Châu - Bồn rửa mắt khẩn cấp - Trang thiết bị phòng sạch - Phụ kiện phòng thí nghiệm

Page Load Speed

18.2 sec in total

First Response

841 ms

Resources Loaded

17.2 sec

Page Rendered

181 ms

About Website

Welcome to viantech.vn homepage info - get ready to check Viantech best content right away, or after learning these important things about viantech.vn

Bảo hộ lao động Bình Châu | Bồn rửa mắt khẩn cấp | Bồn rửa mắt cấp cứu | bon rua mat cap cuu| Emergency eye wash| bon rua mat khan cap| Khẩu trang Carbon khẩu trang than hoạt tính Khẩu trang Y tế | Gă...

Visit viantech.vn

Key Findings

We analyzed Viantech.vn page load time and found that the first response time was 841 ms and then it took 17.4 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

viantech.vn performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

6/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value20.1 s

0/100

10%

TBT (Total Blocking Time)

Value530 ms

55/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value21.2 s

1/100

10%

Network Requests Diagram

viantech.vn

841 ms

9131 ms

style.css

539 ms

mod_vvisit_counter.css

551 ms

mootools.js

820 ms

Our browser made a total of 163 requests to load all elements on the main page. We found that 44% of them (72 requests) were addressed to the original Viantech.vn, 46% (75 requests) were made to Binhchau.com.vn and 4% (6 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (9.1 sec) belongs to the original domain Viantech.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 163.2 kB (17%)

Content Size

952.8 kB

After Optimization

789.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Viantech.vn main page is 952.8 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 60% of websites need less resources to load. Images take 613.4 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 99.3 kB

  • Original 119.8 kB
  • After minification 110.6 kB
  • After compression 20.5 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 99.3 kB or 83% of the original size.

Image Optimization

-9%

Potential reduce by 57.5 kB

  • Original 613.4 kB
  • After minification 555.9 kB

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. Viantech images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 4.9 kB

  • Original 216.2 kB
  • After minification 216.2 kB
  • After compression 211.2 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

-42%

Potential reduce by 1.4 kB

  • Original 3.4 kB
  • After minification 3.3 kB
  • After compression 2.0 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. Viantech.vn needs all CSS files to be minified and compressed as it can save up to 1.4 kB or 42% of the original size.

Requests Breakdown

Number of requests can be reduced by 68 (43%)

Requests Now

157

After Optimization

89

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 157 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Viantech. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

viantech.vn accessibility score

69

Accessibility Issues

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

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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

viantech.vn best practices score

58

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

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

viantech.vn SEO score

62

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

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 Viantech.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 Viantech.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 Viantech. 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: