`callahan.co`

DNSSEC	⚠️ Not signed
NS	`ns-cloud-d1.googledomains.com` ⚠️ Not in zone NS records
		A	2001:4860:4802:32::6d^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-d1.googledomains.com`
		A	216.239.32.109^{🇺🇸 Google216.239.32.0/24}
			PTR	`ns-cloud-d1.googledomains.com`
NS	`ns-cloud-d2.googledomains.com` ⚠️ Not in zone NS records
		A	2001:4860:4802:34::6d^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-d2.googledomains.com`
		A	216.239.34.109^{🇺🇸 Google216.239.34.0/24}
			PTR	`ns-cloud-d2.googledomains.com`
NS	`ns-cloud-d3.googledomains.com` ⚠️ Not in zone NS records
		A	2001:4860:4802:36::6d^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-d3.googledomains.com`
		A	216.239.36.109^{🇺🇸 Google216.239.36.0/24}
			PTR	`ns-cloud-d3.googledomains.com`
NS	`ns-cloud-d4.googledomains.com` ⚠️ Not in zone NS records
		A	2001:4860:4802:38::6d^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-d4.googledomains.com`
		A	216.239.38.109^{🇺🇸 Google216.239.38.0/24}
			PTR	`ns-cloud-d4.googledomains.com`

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759657049

Same first word

callahan.co.nz

callahan.company

callahan.ch

callahan.co

callahan.de

callahan.tx.us

callahan.pro

callahan.net

callahan.fund

callahan.com

callahan.org

Similar names

allanach.dk

allanach.cheap

chalalan.com

lalancha.com

DNS History

9 records (4 active, 5 former)

●NSns-cloud-d1.googledomains.com2026-04-10 → 2026-05-13 · 3 obs

○ 2018-10-05 19:33:30
● 2026-04-10 07:03:44
● 2026-05-13 13:32:58

●NSns-cloud-d2.googledomains.com2026-04-10 → 2026-05-13 · 3 obs

○ 2018-10-05 19:33:30
● 2026-04-10 07:03:44
● 2026-05-13 13:32:58

●NSns-cloud-d3.googledomains.com2026-04-10 → 2026-05-13 · 3 obs

○ 2018-10-05 19:33:30
● 2026-04-10 07:03:44
● 2026-05-13 13:32:58

●NSns-cloud-d4.googledomains.com2026-04-10 → 2026-05-13 · 3 obs

○ 2018-10-05 19:33:30
● 2026-04-10 07:03:44
● 2026-05-13 13:32:58

○NSns1.hover.com2015-07-10 → 2018-10-05 · 4 obs

● 2015-07-10 11:17:14
● 2018-10-05 19:33:30
○ 2026-04-10 07:03:44
○ 2026-05-13 13:32:58

○NSns2.hover.com2015-07-10 → 2018-10-05 · 4 obs

● 2015-07-10 11:17:14
● 2018-10-05 19:33:30
○ 2026-04-10 07:03:44
○ 2026-05-13 13:32:58

○MXmx.hover.com.cust.hostedemail.com2015-07-10 → 2018-10-05 · 4 obs

● 2015-07-10 11:17:14
● 2018-10-05 19:33:30
○ 2026-04-10 07:03:44
○ 2026-05-13 13:32:58

○A64.98.145.302017-01-19 → 2018-10-05 · 5 obs

○ 2016-05-03 17:17:40
● 2017-01-19 20:18:46
● 2018-10-05 19:33:30
○ 2026-04-10 07:03:44
○ 2026-05-13 13:32:58

○A64.99.80.302015-07-10 → 2016-05-03 · 4 obs

● 2015-07-10 11:17:14
● 2016-05-03 17:17:40
○ 2017-01-19 20:18:46
○ 2026-05-13 13:32:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	a.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co	-
callahan.co	ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com, ns-cloud-d4.googledomains.com	-

✅ Authoritative Response

Server:216.239.34.109

NS records: ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com, ns-cloud-d4.googledomains.com

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

No DNSKEY for callahan.co

⏱️ Timing

Total: 782ms | Queries: -

📄 Records

Type	Count	Sample Data

Analysis

Name Servers

callahan.co is delegated to four name servers: ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com and ns-cloud-d4.googledomains.com.

callahan.co at least partially shares name servers with other domains such as dviso.com, nicerack.ca, squillini.com, uw-slager.nl and expsend.com.