W3school.com.cn w3school 在线教程

全球最大的中文 Web 技术教程。

W3school.com.cn Overview

W3school.com.cn ranking shows that the page is at position 935 over the world, while the bulk of its audience is from China, where it ranks 194.

It is beneficial to w3school.com.cn that their hosting company CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN servers are located in China, as that reduces page load time for the majority of their users. See the list of other webpages hosted on CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN servers.

In terms of rank-to-traffic ratio, w3school.com.cn has 207,374 unique users per day, viewing 776,876 pages. The rank based value of w3school.com.cn is 10,313,114 USD. Every user makes 4.01 pageviews on average.

W3school.com.cn top-level domain belongs to .CN domain zone. Check other webpages in .CN zone.

According the last verification test in November 28, 2019, w3school.com.cn has an expired SSL certificate issued by DigiCert Inc (expired on July 27, 2020). Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by DigiCert Inc.

Based on data from Google Safe Browsing, Google Safe Search, Symantec and Web of Trust w3school.com.cn is a fairly safe domain.

According the Mobile-Friendly test by Google w3school.com.cn is nice optimized for mobile devices and tablets.

W3school.com.cn Rank Summary

Global Rank
935
Average Load Time
3.82sec
Links In Count
1,366
Website Value
$9.5 M

W3school.com.cn Website Safety

logo
Overview
Last Updated: 09/30/2022
Overall result - w3school.com.cn is safe.
We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.
Norton connect safe logo
Norton Connect Safe
Last Updated: 01/28/2022
w3school.com.cn is safe.
Norton ConnectSafe evaluates w3school.com.cn for any unsafe and insecure content. The results are critical for families with young children.
Google logo
Google Safe Search
Last Updated: 02/01/2019
w3school.com.cn is safe.
SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.
Google safe brwosing logo
Google Safe Browsing
Last Updated: 08/11/2020
w3school.com.cn is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
McAfee logo
Site Advisor
Last Updated: 02/22/2021
w3school.com.cn is safe.
McAfee assesses w3school.com.cn for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze w3school.com.cn for mature or inappropriate content, only security checks are evaluated.
Web of trust logo
Web of Trust
Last Updated: 01/09/2019
w3school.com.cn child safety is very good.
The WOT calculates reputation of the w3school.com.cn. This reputation system receives ratings from users and information from third-party sources, assesses the w3school.com.cn for safety features and confirms, whether w3school.com.cn is suitable for children.

SSL Information
Domainwww.w3school.com.cn
Issuer OrganizationDigiCert Inc
IssuerEncryption Everywhere DV TLS CA - G1
AlgorithmRSA-SHA256
Valid form07/28/2019
Expiration07/27/2020
SignedCertificate is not self signed
Additional Domains www.w3school.com.cn
w3school.com.cn

W3school.com.cn Hosting Information

Server Location

ASN Information

ASN ID: 37963
ASN Title: CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN

Last Update: 04/14/2022

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% Information related to 'AS37963'

% Abuse contact for 'AS37963' is 'ipas@cnnic.cn'

aut-num: AS37963
as-name: CNNIC-ALIBABA-CN-NET-AP
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person: Shuo Yu
address: 5F, Builing D, the West Lake International Plaza of S&T
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person: Guoxin Gao
address: 5F, Builing D, the West Lake International Plaza of S&T
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person: security trouble
e-mail: cloud-cc-sqcloud@list.alibaba-inc.com
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person: Guowei Pan
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% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US4)

W3school.com.cn Domain Registration and Settings

WHOIS

Domain Name: w3school.com.cn
ROID: 20060720s10011s66954821-cn
Domain Status: clientTransferProhibited
Registrant: 杨伟伟
Registrant Contact Email: rgb@qq.com
Sponsoring Registrar: 阿里云计算有限公司(万网)
Name Server: dns7.hichina.com
Name Server: dns8.hichina.com
Registration Time: 2006-07-20 11:05:27
Expiration Time: 2029-07-20 11:05:27
DNSSEC: unsigned


DNS Records
HostA RecordTTL
w3school.com.cn120.55.40.41600
HostMX RecordPriorityTTL
w3school.com.cnmxbiz1.qq.com53600
w3school.com.cnmxbiz2.qq.com103600
HostNS RecordTTL
w3school.com.cndns8.hichina.com86400
w3school.com.cndns7.hichina.com86400
HostTXT RecordTTL

dns7.hichina.com
TTL: 3600
Email address: hostmaster.hichina.com
Serial: 2017070300
Refresh: 3600
Retry: 1200
Expire: 3600
Minimum: 360

W3school.com.cn HTML Check


Errors

W3school.com.cn Desktop Performance

Last tested: 09/12/2018

Speedometer image
Desktop Speed
88%

Desktop Resource Breakdown
Total Resources20
Number of Hosts5
Static Resources16
JavaScript Resources2
CSS Resources1

W3school.com.cn Mobile Insights

Last tested: 02/08/2018

Speedometer image
Mobile Usability
89%
Speedometer image
Mobile Speed
99%

Mobile Resource Breakdown
Total Resources2
Number of Hosts1
Static Resources1

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