21cto.com


21cto.com Website Info

21cto.com (21cto.com is a comprehensive online portal focused on technology and information technology (IT). It provides a range of content including technology news, programming tutorials, industry insights, and community discussions to support IT professionals and tech enthusiasts worldwide.) was registered first at 2006-12-01 15:23:03. DNS looks Active and website looks Accessable. According to Google, website speed score is 0/100 and . Website looks safe for children.
21cto.com


21cto.com Website Tags

Domain Status:
✓ Active
Is Site Accessable?:
✓ Yes
SSL(https):
✓ Yes
Accessable Url:
Title:
21cto.com - Technology and IT Community Portal
Description:
21cto.com is a leading platform dedicated to technology enthusiasts and IT professionals, offering news, articles, tutorials, and resources in the tech industry.
Canonical URL:
[Not Set]

21cto.com Domain & Whois Details

Refresh
Domain Create Date:
2006-12-01 15:23:03
Domain Age:
18 years, 7 months, 2 days
Domain Expire Date:
2029-12-01T15:23:03Z
Domain Last Update Date:
2029-12-01T15:23:03Z
Domain Owner:
http://www.xinnet.com - Xin Net Technology Corporation -
Server Type:
nginx/1.20.1
Nameservers:
VIP1.ALIDNS.COM - VIP2.ALIDNS.COM -
Hosting Location:
Country:China, City:Shenzhen, Isp:EuroNet Internet, Org:Wanadoo Nederland BV
IP:
81.70.105.8



21cto.com Website Speed (Desktop) Check Now

Speed analysis has not been completed yet. Our system will be checking this website soon.


21cto.com Website Safety

Refresh
Last Check Date:
6/18/2023 1:27:47 PM
Fortiguard:
Health and Wellness
Mcafee Category:
Forum/Bulletin Boards
OpenDNS:
BeFirst
Cloudflare DNS:
OK
MyWot Child Safety:
99

21cto.com HTTP Headers

Refresh
Cache-Control :
no-cache, private
Connection :
keep-alive
Content-Type :
text/html; charset=UTF-8
Date :
Tue, 27 Jun 2023 14:37:31 GMT
Server :
nginx/1.20.1
Set-Cookie :
XSRF-TOKEN=eyJpdiI6ImgxTE4zOTIzVXZhODYvc05MNWd5VkE9PSIsInZhbHVlIjoieGlHbDFGUzBHVDZFWlVNajk0QzFqVUE0U
Transfer-Encoding :
chunked
Vary :
Accept-Encoding


21cto.com W3C HTML Validation Check Now

Last Check Date:
Errors:
Warnings:
Info:

21cto.com Similar Sites

Website
Title
Rank
FINRM.org - Financial Risk Management Resources and Insights
师音网
SegmentFault - 技术问答与开发者社区
395,295
Shikey.com - Your Trusted Platform for Innovative Solutions
8,985,826
iSpyCode - Your Ultimate Coding and Programming Resource
5,066,651

21cto.com Site Keywords

AI
CTO
developer resources
IT培训
IT教育
java
PHP
programming
Python
Tech Community
Technology
人工智能
前端
在线学习
在线教育
大型网站建设,网站开发,企业信息化,电子商务解决方案
大数据
开发者
思技创想(北京)科技有限公司
技术社区
数据库
架构
框架

21cto.com Site H Tags

Check Now


What is SitesDB?

SitesDB is one of the largest databases of websites and domain names on the internet, with over 40 million entries and growing. For more than 12 years, we've been manually verifying and updating website and domain details, combining human expertise with AI-powered systems to ensure the accuracy and relevance of our data.

At SitesDB, we provide in-depth technical and useful information about websites and domains, including:

  • Website meta tags
  • Domain & WHOIS data
  • General backlink and ranking statistics
  • Social media engagement stats
  • Root page speed insights
  • Website content and HTML resources
  • Website safety and security details, sourced from multiple trusted security providers
  • HTTP headers analysis
  • HTML validation reports
  • Lists of similar websites and competitors
  • Website keyword analysis, including top traffic-driving keywords
  • Heading structure (H tags) breakdown
  • Domain variations across different TLDs (Top-Level Domains)

In addition to this data, SitesDB offers a suite of website analysis tools — including Chrome CRUX, Google Lighthouse, and our own AI-enhanced algorithms — to help identify alternative websites, direct competitors, and similar sites, all continuously refined through both automated systems and human review.