21bc.com - dns.ninja

21bc.com

DNSSEC⚠️ Not signed
A114.55.177.251🇨🇳 Alibaba-Cloud114.55.128.0/17
NSiz23tw7do3lz ⭐
NSdns.21bc.com ⚠️ Not in zone NS records
A114.55.177.251🇨🇳 Alibaba-Cloud114.55.128.0/17
NSdns.21qy.com
A114.55.177.251🇨🇳 Alibaba-Cloud114.55.128.0/17
MXmail.21bc.com ⭐
A114.55.177.251🇨🇳 Alibaba-Cloud114.55.128.0/17
SOAiz23tw7do3lzhostmaster serial=9

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1783724442

Subdomains

dns.21bc.com
mail.21bc.com

Same first word

21bc.com
21bc.us
21bc.org
21bc.ru

Similar names

bc21.cz
12cb.dev
21cb.de
cb12.nl
cb21.com
b12c.com
cb21.jp
bc12.pw
cb12.gr
cb21.co.jp
cb21.de
bc21.jp
c1b2.net
bc21.ru
cb12.cc
cb12.fr
cb12.com.ru
1c2b.com
cb12.be
cb21.fr
bc21.com
21cb.ca
cb12.de
bc21.de
12bc.de
c2b1.info
cb12.es
c1b2.cn
12cb.cn
cb21.net
2b1c.org
cb12.pt
21cb.cn
bc21.ca
cb21.org
cb12.ie
21cb.net
bc21.eu
bc21.at
2b1c.net
12cb.com
bc21.cn
cb12.net
2bc1.com
b21c.com
1b2c.fr
cb12.us
21cb.ai
1c2b.ru
cb12.ch
c1b2.com
cb12.at
cb12.co.uk
cb12.com

DNS History

5 records (5 active, 0 former)

20162017201820192020202120222023202420252026NSdns.21bc.comdns.21qy.comiz23tw7do3lzMXmail.21bc.comA114.55.177.251
●NSdns.21bc.com2026-04-03 → 2026-07-10 · 3 obs
○ 2015-08-10 09:27:42
● 2026-04-03 10:33:44
● 2026-07-10 23:30:32
●NSdns.21qy.com2015-08-10 → 2026-07-10 · 2 obs
● 2015-08-10 09:27:42
● 2026-07-10 23:30:32
●NSiz23tw7do3lz2026-04-03 → 2026-07-10 · 3 obs
○ 2015-08-10 09:27:42
● 2026-04-03 10:33:44
● 2026-07-10 23:30:32
●MXmail.21bc.com2015-08-10 → 2026-07-10 · 2 obs
● 2015-08-10 09:27:42
● 2026-07-10 23:30:32
●A114.55.177.2512026-04-03 → 2026-07-10 · 2 obs
● 2026-04-03 10:33:44
● 2026-07-10 23:30:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
21bc.comdns.21bc.com, dns.21qy.com2 records

✅ Authoritative Response

Server:114.55.177.251

NS records: dns.21bc.com, dns.21qy.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21bc.com (unsigned zone)

⏱️ Timing

Total: 1745ms | Queries: -

📄 Records

TypeCountSample Data
A1114.55.177.251
NS1DNS.21QY.com
MX1mail.21bc.com (pri: 10)
SOA1iz23tw7do3lz hostmaster

📌 Glue Records Collected

Total: 2

In-bailiwick: 1 (dns.21bc.com)

Out-of-bailiwick: 1 (dns.21qy.com)

Analysis

Hierarchy

dns.21bc.com and mail.21bc.com are both subdomains of 21bc.com.

IP Addresses

21bc.com resolves to one IP address: 114.55.177.251.

www.tideinfo.com.cn, mail.tideinfo.com.cn, dns.21bc.com and two other host names share IP numbers with 21bc.com.

Name Servers

21bc.com has three name servers — iz23tw7do3lz, dns.21bc.com and dns.21qy.com.

Some name servers delegated to 21bc.com are also used by other domains, notably 21qy.com and tideinfo.com.cn.

dns.21bc.com and dns.21qy.com each point to one IP address — 114.55.177.251.

The host names dns.21bc.com and dns.21qy.com both resolve to 114.55.177.251 IP addresses.

Mail Servers

Mail for 21bc.com is handled by a single mail server, mail.21bc.com.

mail.21bc.com points to one IP number — 114.55.177.251.