Access kesion.com. KESION 科汛-在线网校系统_在线培训考试系统_在线教育系统_知识付费系统

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value10.3 s

0/100

25%

SI (Speed Index)

Value21.7 s

0/100

10%

TBT (Total Blocking Time)

Value7,010 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.34

33/100

15%

TTI (Time to Interactive)

Value28.8 s

0/100

10%

kesion.com

9316 ms

css.css

3458 ms

main.css

5459 ms

text.css

2647 ms

jquery.js

8151 ms

Our browser made a total of 103 requests to load all elements on the main page. We found that 87% of them (90 requests) were addressed to the original Kesion.com, 3% (3 requests) were made to Combo.b.qq.com and 2% (2 requests) were made to Eshop.kesion.com. The less responsive or slowest element that took the longest time to load (20.4 sec) belongs to the original domain Kesion.com.

Content Size

535.1 kB

After Optimization

279.8 kB

In fact, the total size of Kesion.com main page is 535.1 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. 15% of websites need less resources to load. Javascripts take 182.9 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 95.5 kB

Original 130.5 kB
After minification 104.5 kB
After compression 35.0 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. This page needs HTML code to be minified as it can gain 26.0 kB, which is 20% 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 95.5 kB or 73% of the original size.

Image Optimization

-13%

Potential reduce by 20.3 kB

Original 150.9 kB
After minification 130.5 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, KESION needs image optimization as it can save up to 20.3 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-44%

Potential reduce by 80.8 kB

Original 182.9 kB
After minification 182.6 kB
After compression 102.1 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 80.8 kB or 44% of the original size.

CSS Optimization

-83%

Potential reduce by 58.7 kB

Original 70.8 kB
After minification 62.3 kB
After compression 12.2 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. Kesion.com needs all CSS files to be minified and compressed as it can save up to 58.7 kB or 83% of the original size.

Requests Now

After Optimization

The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of KESION. 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 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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 semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

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 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

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

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

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

Language and Encoding

Language Detected

ZH
Language Claimed

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kesion.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Kesion.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

kesion.com

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

KESION 科汛-在线网校系统_在线培训考试系统_在线教育系统_知识付费系统_培训考核系统及开源建站CMS系统

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

kesion.com

css.css

main.css

text.css

jquery.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

kesion.com

css.css

main.css

text.css

jquery.js

tab.js

flexslider.css

jquery.flexslider-min.js

custom.js

lrtk.js

jquery.tools.tabs.min.js

jquery.easing.1.3.js

jquery.zalki_hover_img.min-0.2.js

index.js

wpa.php

logo.png

hot.gif

hl.png

icon7.png

icon6.png

ewm.png

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A130352763265625.gif

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I130856595871386.jpg

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530b7755750.jpg

SM-0021.png

180938.jpg

shop03.png

G130984266723268.gif

A130984265707474.gif

U130870441069678.gif

N130870435378841.gif

N130859922730534.jpg

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