Report Summary

  • 37

    Performance

    Renders faster than
    57% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

sieuthidenled24h.com

CÔNG TY TNHH MTV THIẾT BỊ ĐIỆN VÀ CHIẾU SÁNG DUNG KIÊN

Page Load Speed

10 sec in total

First Response

2 sec

Resources Loaded

7.6 sec

Page Rendered

306 ms

sieuthidenled24h.com screenshot

About Website

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Visit sieuthidenled24h.com

Key Findings

We analyzed Sieuthidenled24h.com page load time and found that the first response time was 2 sec and then it took 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

sieuthidenled24h.com performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value13.7 s

0/100

25%

SI (Speed Index)

Value11.7 s

4/100

10%

TBT (Total Blocking Time)

Value220 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value0.232

54/100

15%

TTI (Time to Interactive)

Value11.6 s

18/100

10%

Network Requests Diagram

sieuthidenled24h.com

2006 ms

jquery.min.1.11.0.js

883 ms

bootstrap.min.js

611 ms

scripts.js

622 ms

html5shiv.js

627 ms

Our browser made a total of 76 requests to load all elements on the main page. We found that 63% of them (48 requests) were addressed to the original Sieuthidenled24h.com, 22% (17 requests) were made to Otoforddanang.com and 7% (5 requests) were made to Hstatic.net. The less responsive or slowest element that took the longest time to load (2.4 sec) relates to the external source Otoforddanang.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.5 MB (53%)

Content Size

2.9 MB

After Optimization

1.4 MB

In fact, the total size of Sieuthidenled24h.com main page is 2.9 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. 50% of websites need less resources to load. Images take 2.6 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 136.5 kB

  • Original 157.0 kB
  • After minification 102.2 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. This page needs HTML code to be minified as it can gain 54.8 kB, which is 35% 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 136.5 kB or 87% of the original size.

Image Optimization

-54%

Potential reduce by 1.4 MB

  • Original 2.6 MB
  • After minification 1.2 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, Sieuthidenled 24 H needs image optimization as it can save up to 1.4 MB or 54% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-9%

Potential reduce by 14.1 kB

  • Original 161.1 kB
  • After minification 161.1 kB
  • After compression 147.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-18%

Potential reduce by 10.5 kB

  • Original 57.0 kB
  • After minification 57.0 kB
  • After compression 46.5 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. Sieuthidenled24h.com needs all CSS files to be minified and compressed as it can save up to 10.5 kB or 18% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (48%)

Requests Now

54

After Optimization

28

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sieuthidenled 24 H. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

sieuthidenled24h.com accessibility score

73

Accessibility Issues

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.

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

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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

sieuthidenled24h.com 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

SEO Factors

sieuthidenled24h.com SEO score

85

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

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sieuthidenled24h.com can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and it does not match the claimed English language. Our system also found out that Sieuthidenled24h.com 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 data is detected on the main page of Sieuthidenled 24 H. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: