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Report Summary

About Website

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name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.7 s

100/100

25%

SI (Speed Index)

Value0.7 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.7 s

100/100

10%

796 ms

style.css

77 ms

toggle-box.css

84 ms

thickbox.css

76 ms

jwplayer.js

153 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that 78% of them (18 requests) were addressed to the original Khoahoc.peacat.com, 9% (2 requests) were made to Google-analytics.com and 4% (1 request) were made to Statcounter.com. The less responsive or slowest element that took the longest time to load (796 ms) belongs to the original domain Khoahoc.peacat.com.

Content Size

400.9 kB

After Optimization

126.2 kB

In fact, the total size of Khoahoc.peacat.com main page is 400.9 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. 20% of websites need less resources to load. Javascripts take 313.0 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 6.2 kB

Original 9.2 kB
After minification 8.9 kB
After compression 3.0 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 6.2 kB or 67% of the original size.

Image Optimization

-0%

Potential reduce by 11 B

Original 5.4 kB
After minification 5.4 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. Khoahoc Peacat images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 206.8 kB

Original 313.0 kB
After minification 305.1 kB
After compression 106.2 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 206.8 kB or 66% of the original size.

CSS Optimization

-84%

Potential reduce by 61.7 kB

Original 73.3 kB
After minification 59.0 kB
After compression 11.7 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. Khoahoc.peacat.com needs all CSS files to be minified and compressed as it can save up to 61.7 kB or 84% of the original size.

Requests Now

After Optimization

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Khoahoc Peacat. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 6 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

Document doesn't have a <title> element

These are opportunities to improve the interpretation of your content by users in different locales.

High

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

Search Engine Optimization Advices

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

High

Document doesn't have a <title> element

Language and Encoding

Language Detected

N/A
Language Claimed

EN
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Khoahoc.peacat.com can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Khoahoc.peacat.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 description is not detected on the main page of Khoahoc Peacat. 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: