w3cschool.cn Domain Owner Whois and Analysis

DOMAIN OWNER WHOIS

ⓘ The owner has chosen to keep his whois contact information private.

SEO SCORE

w3cschool.cn
Make your link ↑ do-follow

✅ 9 criteria passed
❌ 2 criteria to solve

PERFORMANCE OPPORTUNITIES

Make your meta description eloquent and appealing, neither too short nor too long.

Improve your social media presence. Encourage people to share your homepage.

OVERVIEW

• Domain Owner

Private

• Category

Technology & Computing

• Alexa Rank

#25.213, w3cschool.cn is in the world's top 50.000 websites!

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TECHNICAL SEO & SECURITY

❌ SSL Certificate

This website is not SSL secured (HTTPS), the certificate issued by DigiCert Inc has expired on April 24, 2020.

✅ Title Tag

w3cschool - 编程狮，随时随地学编程
Length: 45 (recommended: 10 to 70)

❌ Meta Description

w3cschool启用中文品牌名--编程狮，是一个专业的web前端开发及编程入门学习平台，提供包括HTML,CSS,Javascript,jQuery,C,PHP,Java,Python,Sql,Mysql等编程语言和开源技术的在线教程及使用手册，是类国外w3schools的W3C学习社区及菜鸟编程平台。
Length: 299 (recommended: 50 to 160)

ⓘ Google preview

Desktop Version

w3cschool - 编程狮，随时随地学编程

https://w3cschool.cn

Mobile Version

https://w3cschool.cn

w3cschool - 编程狮，随时随地学编程

w3cschool启用中文品牌名--编程狮，是一个专业的web前端开发及编程入门学习平台，提供包括HTML,CSS,Javascript,jQuery,C,PHP,Java,Python,Sql,Mysql等编程语言和开源技术的在线教程及使用手册，是类国外w3...

✅ Encoding

Great, language/character encoding is specified: utf-8

✅ URL Resolve

Great, a redirect is in place to redirect traffic from your non-preferred domain. All versions of your page point to the same URL.

URL	Resolved URL
http://w3cschool.cn	https://www.w3cschool.cn/
https://w3cschool.cn	https://www.w3cschool.cn/
http://www.w3cschool.cn	https://www.w3cschool.cn/
https://www.w3cschool.cn	https://www.w3cschool.cn/

✅ Robots.txt

https://www.w3cschool.cn/robots.txt

✅ URL Parameters

Great, the domain URLs look clean.

SEMANTIC ANALYSIS

ⓘ The owner has associated the following topics to the website.

PAGESPEED INSIGHTS

Page on which speed is tested live:

Chrome User Experience Report Results

Lighthouse Results

Run Google PageSpeed Insights Analysis on w3cschool.cn

TRAFFIC

ⓘ This website is ranked #25.213 by Alexa.

This rank is traffic based. The lower the rank is, the better the domain is ranked.

Daily visitors by country

China (87.3%)
Hong Kong (3.6%)
Others (9.1%)

Traffic country ranks

Country	Rank
China	#1.701
Hong Kong	#3.922
Taiwan	#21.211

LAYOUT

ⓘ Doctype HTML5

ⓘ Responsive website, mobile-friendly.

Mobile Rendering

This website doesn't seem to be optimized for Mobile Visitors.

Phone
How w3cschool.cn looks like on a mobile device such as an iPhone.

Tablet
How w3cschool.cn looks like on a tablet such as an iPad.

Main colors used

ⓘ These are the main HTML color codes used by this website.

44% #ffffff
23% #f0f0f0
8% #b0e0ff
3% #fffff0
2% #b0e0f0
2% #f0ffff
2% #e0f0ff
1% #90d0f0
1% #fff0f0
1% #80c0e0
1% #1060a0
1% #f0e0d0

Text/code ratio

ⓘ w3cschool.cn's text/code ratio is 12.30%. It's a bit low. Consider raising it by adding more text content of value for your visitors, or keeping your code clean.

Text / Code Ratio 12.30%

A good text to HTML ratio is anywhere from 25 to 70%.

This percentage refers to the visible text ratio, as opposed to HTML elements, image tags and other non-visible information.

Main HTML tags

✅ Headings

Great, we found headings on this page.

<H1> 0
<H2> 2
<H3> 25
<H4> 145
<H5> 0
<H6> 0

However, you have not defined a top level heading, or <H1>. It is used to define the most important heading.

We recommend using one top level heading to set up a semantic relationship between that heading and the remainder of the content on a page. It clearly describes to the readers and the search engines what it is about.

<H2>

2^nd level heading
编程课程分类
极客教程免费的在线教程&技术文档

<H3>

For a better readability, only the first 20 <H3> tags are shown below.

3^rd level heading
新上好课
热门推荐
前端开发初级课程
前端开发中级课程
前端高级及应用课程
前端视频类课程
Python微课类课程
Python视频类课程
Java初级
Java进阶
后端开发课程
数据库课程
编程基础课程
其它课程
Html/css
Javascript
后端语言
开发框架
数据库
移动开发

<H4>

For a better readability, only the first 20 <H4> tags are shown below.

4^th level heading
快速登录
Html教程
Html5教程
Css教程
Css3教程
Bootstrap教程
Foundation5 教程
Html参考手册
Css参考手册
Javascript教程
Jquery教程
Javascript 和 html dom 参考手册
Node.js教程 (2)
Vue 手册
React 教程 (2)
Angularjs教程
Typescript 教程
Json教程
Ajax教程
Ecmascript教程

✅ Alt attributes

We found 223 images on this website.
Great, 0 ALT attributes are missing on your image tags.

LINKS

ⓘ There is a total of 299 links on the homepage of this website.

5 of which have the nofollow attribute, meaning that their destination should not be afforded any additional weight or ranking by search engines.

ⓘ Internal links : 271

For a better readability, only the first 50 internal links are shown below.

Anchor	Type	URL
	image	//www.w3cschool.cn
App下载	text	//www.w3cschool.cn/download
注册	text	//www.w3cschool.cn/register?refer=/
登录	text	//www.w3cschool.cn/login?refer=/
编程入门教程FREE	text	/tutorial
编程课程	text	/courses
编程实战	text	/codecamp
编程题库	text	/exam
在线工具	text	//123.w3cschool.cn/webtools
VIP会员HOT	text	/vip?fcode=indexmenu
	image	/courses?direction=0&tag=0&type=0&condition=0&order=2
	image	/minicourse/play/quick_scrapy
	image	/minicourse/play/visgn
	image	/minicourse/play/pyturtle
	image	/minicourse/play/kszqb
	image	/minicourse/play/00007
	image	/minicourse/play/python3course
	image	/minicourse/play/phpcourse
	image	/minicourse/play/sqlcourse
	image	/minicourse/play/swiftcourse
	image	/minicourse/play/wxadoccourse
前端开发	text	/group/frontend.html
	image	https://www.w3cschool.cn/wsfnp/
	image	https://www.w3cschool.cn/htmlcourse/
	image	https://www.w3cschool.cn/csscourse/
	image	https://www.w3cschool.cn/jscourse/
	image	https://www.w3cschool.cn/jquerycourse/
	image	https://www.w3cschool.cn/bootstrap3course/
	image	https://www.w3cschool.cn/ajaxcourse/
	image	https://www.w3cschool.cn/lessminicourse/
	image	https://www.w3cschool.cn/flexboxcourse/
	image	https://www.w3cschool.cn/wxadoccourse/
	image	https://www.w3cschool.cn/tsminicourse/
	image	https://www.w3cschool.cn/orbls/
	image	https://www.w3cschool.cn/puybn/
	image	https://www.w3cschool.cn/vuecourse/
	image	https://www.w3cschool.cn/html_txy/
	image	https://www.w3cschool.cn/css_txy/
	image	https://www.w3cschool.cn/javascript_txy/
	image	https://www.w3cschool.cn/jquery_txy/
	image	https://www.w3cschool.cn/bootstrap_txy/
	image	https://www.w3cschool.cn/my_qianduan/
	image	https://www.w3cschool.cn/vuejs_txy_base/
Python系列	text	/group/pythoner.html
	image	https://www.w3cschool.cn/python3course/
	image	https://www.w3cschool.cn/pythonhigh/
	image	https://www.w3cschool.cn/pyturtle/
	image	https://www.w3cschool.cn/pythondjango/
	image	https://www.w3cschool.cn/pyflask/
	image	https://www.w3cschool.cn/python1_txy/

ⓘ External links : 28

Anchor	Type	URL
智米云	text	http://www.zhimiyun.com/
UI交互设计	text	https://www.25xt.com/
aTool在线工具	text	http://www.atool.org/
易百教程	text	http://www.yiibai.com/
ThinkSAAS	text	http://www.thinksaas.cn/
应用公园	text	http://www.apppark.cn/
魔客吧	text	http://www.moke8.com/
17CE	text	http://www.17ce.com/
office办公助手	text	http://www.officezhushou.com/
JSON在线工具	text	http://www.bejson.com/
LayaBox	text	http://layabox.com/
Linux教程	text	http://www.linuxprobe.com
模板之家	text	http://www.cssmoban.com
CAD	text	https://www.zwcad.com/
i春秋	text, nofollow	http://www.ichunqiu.com?from=w3cschool
微信小程序	text	http://www.jisuapp.cn/
android开发	text	http://www.apkbus.com/
我要自学网	text	http://www.51zxw.net
U盘启动盘制作工具	text	http://www.upandashi.com/
安卓模拟器	text	http://www.bluestacks.cn/
Windows10	text	https://www.landiannews.com
WeTest腾讯质量开放平台	text	http://wetest.qq.com/?from=links_w3c
达内it培训	text	http://www.tedu.cn/
建盏	text	http://www.dzmjz.com
APIcloud	text	https://www.apicloud.com/
在线工具	text	https://123.w3cschool.cn/webtools
w3cschool手机版	text	https://m.w3cschool.cn/
官方QQ群：668469541	text	https://jq.qq.com/?_wv=1027&k=5mjhkıy