Tools & Wizards About Us

Report Summary

  • 51

    Performance

    Renders faster than
    69% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

congngheaz.com

Công nghệ AZ - Trang tin tức công nghệ & đời sống

Page Load Speed

7.6 sec in total

First Response

630 ms

Resources Loaded

5.6 sec

Page Rendered

1.4 sec

About Website

Welcome to congngheaz.com homepage info - get ready to check Congnghe AZ best content for Vietnam right away, or after learning these important things about congngheaz.com

Chuyên trang chia sẻ kiến thức công nghệ, phần mềm máy tính, thủ thuật máy tính. Cập nhật tin tức kiến thức mới nhất về công nghệ đời sống

Visit congngheaz.com

Key Findings

We analyzed Congngheaz.com page load time and found that the first response time was 630 ms and then it took 7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

congngheaz.com performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

41/100

25%

SI (Speed Index)

Value7.1 s

31/100

10%

TBT (Total Blocking Time)

Value350 ms

73/100

30%

CLS (Cumulative Layout Shift)

Value0.223

56/100

15%

TTI (Time to Interactive)

Value8.1 s

41/100

10%

Network Requests Diagram

congngheaz.com

630 ms

congngheaz.com

2880 ms

all.min.css

36 ms

flatsome.css

722 ms

jquery.min.js

1152 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 85% of them (23 requests) were addressed to the original Congngheaz.com, 7% (2 requests) were made to Cdnjs.cloudflare.com and 7% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Congngheaz.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 178.8 kB (65%)

Content Size

273.5 kB

After Optimization

94.8 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Congngheaz.com main page is 273.5 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. 40% of websites need less resources to load. HTML takes 207.3 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 173.6 kB

  • Original 207.3 kB
  • After minification 193.6 kB
  • After compression 33.7 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. 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 173.6 kB or 84% of the original size.

Image Optimization

-12%

Potential reduce by 4.6 kB

  • Original 36.5 kB
  • After minification 31.9 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. Obviously, Congnghe AZ needs image optimization as it can save up to 4.6 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-2%

Potential reduce by 641 B

  • Original 29.8 kB
  • After minification 29.8 kB
  • After compression 29.1 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. Congngheaz.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 10 (63%)

Requests Now

16

After Optimization

6

  • Images
  • JavaScript
  • CSS

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Congnghe AZ. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

congngheaz.com accessibility score

86

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

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

congngheaz.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

congngheaz.com SEO score

99

Search Engine Optimization Advices

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 Congngheaz.com 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 Congngheaz.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 Congnghe AZ. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: