Access vibm.vn. Viện Vật liệu xây dựng - Nghiên cứu Vật liệu xây dựng, Công nghệ Vật liệu xây dựng, Kiểm đi...

name

value

score

weighting

FCP (First Contentful Paint)

Value6.3 s

3/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value11.1 s

6/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.7 s

45/100

10%

vibm.vn

2716 ms

default.css

1873 ms

module.css

546 ms

module.css

538 ms

skin.css

1349 ms

Our browser made a total of 92 requests to load all elements on the main page. We found that 99% of them (91 requests) were addressed to the original Vibm.vn, 1% (1 request) were made to Sstatic1.histats.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Vibm.vn.

Content Size

1.2 MB

After Optimization

542.5 kB

In fact, the total size of Vibm.vn main page is 1.2 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. 55% of websites need less resources to load. Javascripts take 554.8 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 77.9 kB

Original 97.6 kB
After minification 82.7 kB
After compression 19.7 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 14.9 kB, which is 15% 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 77.9 kB or 80% of the original size.

Image Optimization

-6%

Potential reduce by 22.0 kB

Original 366.5 kB
After minification 344.5 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. Vibm images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 403.9 kB

Original 554.8 kB
After minification 532.4 kB
After compression 151.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 403.9 kB or 73% of the original size.

CSS Optimization

-88%

Potential reduce by 192.8 kB

Original 220.1 kB
After minification 130.6 kB
After compression 27.3 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. Vibm.vn needs all CSS files to be minified and compressed as it can save up to 192.8 kB or 88% of the original size.

Requests Now

After Optimization

The browser has sent 89 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vibm. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

High

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

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

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

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

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 Vibm.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 Vibm.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

vibm.vn

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Viện Vật liệu xây dựng - Nghiên cứu Vật liệu xây dựng, Công nghệ Vật liệu xây dựng, Kiểm định Vật liệu xây dựng, Chứng nhận Vật liệu ...

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

vibm.vn

default.css

module.css

module.css

skin.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

vibm.vn

default.css

module.css

module.css

skin.css

container.css

portal.css

jquery.min.js

jquery-migrate.min.js

jquery-ui.min.js

superfish.css

WebResource.axd

Telerik.Web.UI.WebResource.axd

dnn.js

dnn.modalpopup.js

dnn.servicesframework.js

dnncore.js

core.css

website.css

injected.css

jquery.tinycarousel.custom.min.js

jquery.tinycarousel.js

initWidgets.js

0.gif

no_image.gif

thummail_VIBM1.jpg

small-logo.png

vi_vn.png

en_us.png

Huan%20chuong%20Doc%20lap%20hang%20Nhat_Vietnam_Sua_1.png

iso_9001_2008.png

prev_icon.png

thummail_Holcim2-7fb3a.jpg

thummail_img10.jpg

thummail_Giay%20CN_nho.jpg

thummail_GS-TT2.jpg

thummail_Dao%20tao%201.jpg

thummail_Mo%20hinh%20lo%20nung%20sx%20gach%20do.jpg

thummail_Thuy%20tinh%20mau.jpg

thummail_Bi%20nghien.jpg

thummail_Opaque-Frit-OP-88-.jpg

thummail_dich%20vu%20tbmt.jpg

thummail_sp%20tbmt_635498850453610079.jpg