21cn.net is not available!

  • Website up
  • Not on blocklists
Registrar
Xiamen 35.com Information Co., Ltd.
Registered on
Expires on
Last updated
Name servers
Status
  • client transfer prohibited
DNSSEC
Not signed
Report abuse to
domainabuse@35.cn
Checked
Visit 21cn.net

Contacts

  • Registrar

    Xiamen 35.com Information Co., Ltd. 4163

  • Abuse

    domainabuse@35.cn

    +86.05925234925

Website

Answer
200 OKin 1,289 ms
Ends at
https://b.cloud.189.cn/corpmail/
Redirects
  • https://21cn.net/ (301)
Title
企业邮箱_企业安全邮箱_中国电信企业邮箱
Server
openresty
Protocols
HTTP/2
Certificate
WoTrus CA Limited (WoTrus RSA OV SSL CA 2) for *.21cn.net and 21cn.net, valid until
www
Redirects to https://b.cloud.189.cn/corpmail/ (301)

DNS records

21cn.net

A
TTL 10 min
MX
TTL 10 hours
TXT
TTL 10 min
SOA
TTL 10 min
CAA
None: any certificate authority may issue for this name

www.21cn.net

CNAME
  • 21cn.net
TTL 15 min
A
TTL 10 min

As 8.212.93.3 answers them

Reputation

Domain blocklists

  • Spamhaus DBL Not listed
  • SURBL Not listed
  • URIBL Not listed

Rankings

1,626,087 Tranco rank down from 1,298,905 on 2026-09-21
2.23Open PageRank, out of 10
264,242Open PageRank position
6Referring domains

From Tranco and Open PageRank

DNSSEC

21cn.net is not signed.

. Verified

  • Found 3 DNSKEY records for .
  • DS=20326/SHA-256 verifies DNSKEY=20326/SEP
  • DS=38696/SHA-256 verifies DNSKEY=38696/SEP
  • Found 1 RRSIGs over DNSKEY RRset
  • RRSIG=38696 and DNSKEY=38696/SEP verifies the DNSKEY RRset

net Verified

  • Found 1 DS records for net in the . zone
  • DS=37331/SHA-256 has algorithm ECDSAP256SHA256
  • Found 1 RRSIGs over DS RRset
  • RRSIG=8763 and DNSKEY=8763 verifies the DS RRset
  • Found 2 DNSKEY records for net
  • DS=37331/SHA-256 verifies DNSKEY=37331/SEP
  • Found 1 RRSIGs over DNSKEY RRset
  • RRSIG=37331 and DNSKEY=37331/SEP verifies the DNSKEY RRset

21cn.net Not signed

  • No DS records found for 21cn.net in the net zone