cmath.com - dns.ninja

cmath.com

DNSSEC⚠️ Not signed
A121.254.178.253🇰🇷 DACOM-NET121.254.128.0/17 contact noc@bora.net if necessary
NSns2.domainca.com ⭐
A20.200.205.248🇰🇷 Microsoft20.192.0.0/10
NSns.domainca.com
A43.201.170.100🇰🇷 Amazon43.200.0.0/14 EC2 ICN Prefix
PTRec2-43-201-170-100.ap-northeast-2.compute.amazonaws.com
SOAns.domainca.comroot@domainca.com 2026-03-08 #18

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=1781552290

Subdomains

www.cmath.com

Same first word

cmath.cn
cmath.xyz
cmath.co.kr
cmath.fr
cmath.com
cmath.eu
cmath.net

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DNS History

4 records (3 active, 1 former)

200920112013201520172019202120232025NSns.domainca.comns2.domainca.comA121.254.178.253121.254.178.250
●NSns.domainca.com2015-08-20 → 2026-06-15 · 3 obs
○ 2008-03-18 19:16:30
● 2015-08-20 09:46:10
● 2026-06-15 19:59:44
●NSns2.domainca.com2015-08-20 → 2026-06-15 · 3 obs
○ 2008-03-18 19:16:30
● 2015-08-20 09:46:10
● 2026-06-15 19:59:44
○A121.254.178.2502015-08-20 → 2015-08-20 · 4 obs
○ 2008-03-18 19:16:30
● 2015-08-20 09:46:10
○ 2015-12-17 18:49:30
○ 2026-06-15 19:59:44
●A121.254.178.2532015-12-17 → 2026-06-15 · 3 obs
○ 2015-08-20 09:46:10
● 2015-12-17 18:49:30
● 2026-06-15 19:59:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comm.gtld-servers.net, k.gtld-servers.net, i.gtld-servers.net, b.gtld-servers.net...-
cmath.comns.domainca.com, ns2.domainca.com2 records

✅ Authoritative Response

Server:43.201.170.100

NS records: ns.domainca.com, ns2.domainca.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cmath.com (unsigned zone)

⏱️ Timing

Total: 492ms | Queries: -

📄 Records

TypeCountSample Data
A1121.254.178.253
NS2ns.domainca.com, ns2.domainca.com
SOA1ns.domainca.com root.domainca.com

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.domainca.com, ns2.domainca.com)

Analysis

Hierarchy

cmath.com serves as the parent of www.cmath.com.

IP Addresses

cmath.com directs to one IP number, which is 121.254.178.253.

Among the host names that share IP numbers with cmath.com are venet.com, kimchiway.com, tiwc.com and two others.

Name Servers

cmath.com is served by two delegated name servers, ns2.domainca.com and ns.domainca.com.

cmath.com has the same name server delegation as a number of other domains, such as axvideo.com, promatech.com, mocam.com and two more.

The DNS delegation for cmath.com at least partly coincides with that of other domains, yc-greenhouse.com being one example.

ns2.domainca.com directs to 20.200.205.248 and ns.domainca.com directs to 43.201.170.100; each host name points to exactly one IP number.