Access lehoangjsc.vn. Công ty cổ phần đầu tư công nghệ Lê Hoàng

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value7.3 s

5/100

25%

SI (Speed Index)

Value32.9 s

0/100

10%

TBT (Total Blocking Time)

Value47,250 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.544

13/100

15%

TTI (Time to Interactive)

Value72.7 s

0/100

10%

lehoangjsc.vn

1394 ms

default.css

559 ms

style.css

583 ms

jquery.js

847 ms

lib.js

579 ms

Our browser made a total of 116 requests to load all elements on the main page. We found that 84% of them (97 requests) were addressed to the original Lehoangjsc.vn, 7% (8 requests) were made to Opi.yahoo.com and 3% (3 requests) were made to Vs16.tawk.to. The less responsive or slowest element that took the longest time to load (3.8 sec) belongs to the original domain Lehoangjsc.vn.

Content Size

4.3 MB

After Optimization

2.8 MB

In fact, the total size of Lehoangjsc.vn main page is 4.3 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. 65% of websites need less resources to load. Images take 3.3 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 212.0 kB

Original 236.3 kB
After minification 227.5 kB
After compression 24.3 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 212.0 kB or 90% of the original size.

Image Optimization

-21%

Potential reduce by 699.9 kB

Original 3.3 MB
After minification 2.6 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, Lehoang JSC needs image optimization as it can save up to 699.9 kB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-75%

Potential reduce by 511.8 kB

Original 678.1 kB
After minification 590.9 kB
After compression 166.3 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 511.8 kB or 75% of the original size.

CSS Optimization

-81%

Potential reduce by 19.6 kB

Original 24.3 kB
After minification 18.7 kB
After compression 4.7 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. Lehoangjsc.vn needs all CSS files to be minified and compressed as it can save up to 19.6 kB or 81% of the original size.

Requests Now

114

After Optimization

The browser has sent 114 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lehoang JSC. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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.

High

[aria-hidden="true"] elements contain focusable descendents

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

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

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 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>).

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

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

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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/).

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 Lehoangjsc.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 Lehoangjsc.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

lehoangjsc.vn

Open Graph description is not detected on the main page of Lehoang JSC. 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

Công ty cổ phần đầu tư công nghệ Lê Hoàng | Lê Hoàng JSC

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

lehoangjsc.vn

default.css

style.css

jquery.js

lib.js

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

lehoangjsc.vn

default.css

style.css

jquery.js

lib.js

clock.js

swfobject.js

AC_RunActiveContent.js

CalendarPopup.js

tabcontent.js

ddtabmenu.js

stmenu.js

jquery.easing.1.3.js

jquery.galleryview-1.1.js

jquery.timers-1.1.2.js

easySlider1.7.js

jquery.blockUI.js

jquery.history_remote.pack.js

jquery.tabs.js

jquery.tabs.css

tooltip.js

jquery.min.js

ga.js

online

online

online

online

online

online

online

online

bg.png

ads_left.jpg

ads_right.jpg

wait.gif

banner.png

MAY_LAM_DA_VAY_BROTHER_LAP_DAT.jpg

datmua_08.gif

may_lam_da_vay_suntierSoLqU.jpg

MAY_LAM_MIEN_CS_NHO.jpg

may_dem_nguoi_hpc002.jpg

may_phat_dien_nang_luong_mat_troi.jpg

MAY_LAM_DA.jpg