Access kienthuc.net.vn. Báo Tri thức và Cuộc sống - TIN TỨC PHỔ BIẾN KIẾN THỨC 24H

name

value

score

weighting

FCP (First Contentful Paint)

Value7.4 s

1/100

10%

LCP (Largest Contentful Paint)

Value13.4 s

0/100

25%

SI (Speed Index)

Value21.1 s

0/100

10%

TBT (Total Blocking Time)

Value1,680 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.211

59/100

15%

TTI (Time to Interactive)

Value30.1 s

0/100

10%

kienthuc.net.vn

1816 ms

mobileswitcher.js

1344 ms

jquery.bxslider.css

1602 ms

bootstrap.min.css

1862 ms

reset.css

2098 ms

Our browser made a total of 141 requests to load all elements on the main page. We found that 1% of them (2 requests) were addressed to the original Kienthuc.net.vn, 40% (57 requests) were made to Images.kienthuc.net.vn and 23% (32 requests) were made to Static-cms-kienthuc.epicdn.me. The less responsive or slowest element that took the longest time to load (14.9 sec) relates to the external source Images.kienthuc.net.vn.

Content Size

1.5 MB

After Optimization

1.4 MB

In fact, the total size of Kienthuc.net.vn main page is 1.5 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. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-65%

Potential reduce by 16.9 kB

Original 26.0 kB
After minification 26.0 kB
After compression 9.0 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 16.9 kB or 65% of the original size.

Image Optimization

-5%

Potential reduce by 53.9 kB

Original 1.2 MB
After minification 1.1 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. KIE N Thu C images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 15.6 kB

Original 246.2 kB
After minification 245.7 kB
After compression 230.6 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

-10%

Potential reduce by 4.4 kB

Original 44.4 kB
After minification 44.4 kB
After compression 40.0 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. Kienthuc.net.vn has all CSS files already compressed.

Requests Now

137

After Optimization

The browser has sent 137 CSS, Javascripts, AJAX and image requests in order to completely render the main page of KIE N Thu C. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

Image elements do not have [alt] attributes

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 the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

These items highlight common accessibility best practices.

High

The document uses <meta http-equiv="refresh">

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

High

Page has valid source maps

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

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 Kienthuc.net.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 Kienthuc.net.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

kienthuc.net.vn

Open Graph description is not detected on the main page of KIE N Thu C. 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

Báo Tri thức và Cuộc sống - TIN TỨC PHỔ BIẾN KIẾN THỨC 24H

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

kienthuc.net.vn

mobileswitcher.js

jquery.bxslider.css

bootstrap.min.css

reset.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

kienthuc.net.vn

mobileswitcher.js

jquery.bxslider.css

bootstrap.min.css

reset.css

base.css

box-khoe.css

added-style.css

ext.css

main.js

jquery-1.9.1.min.js

bootstrap.min.js

jquery.bxslider.min.js

imagesloaded.pkgd.min.js

jquery.cycle.all.min.js

cycle.css

gpt.js

home.css

event-zone.css

jquery.fixer.js

swfobject.js

jcarousellite.js

datetime.js

iepngfix_tilebg.js

jwplayer.js

player.css

ui.js

log.js

banner.min.js

zone-0.ads

adsbygoogle.js

cdn.js

Arf.min.js

mgid.kienthuc.net.vn.1034786.js

jquery.slimscroll.min.js

DMCABadgeHelper.min.js

sdk.js

js

pubads_impl.js

logcounter.ashx

analytics.js

admcore.js

icon_home.png