`anthropic.ac`

DNSSEC	⚠️ Not signed
NS	`phdns1.focusip.com` ⭐
		A	3.224.149.80^{🇺🇸 Amazon3.224.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-224-149-80.compute-1.amazonaws.com`
NS	`phdns2.focusip.com`
		A	18.233.218.157^{🇺🇸 Amazon18.232.0.0/14 EC2 IAD prefix}
			PTR	`ec2-18-233-218-157.compute-1.amazonaws.com`
TXT	`v=spf1 -all`
SOA	`phdns1.focusip.com`hostmaster@focusip.com serial=1

`ac`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.ac` ⭐
	NS	`a2.nic.ac`
	NS	`b0.nic.ac`
	NS	`c0.nic.ac`
	SOA	`a0.nic.ac`hostmaster@donuts.email serial=1780612018

Same first word

Similar names

DNS History

2 records (2 active, 0 former)

●NSphdns1.focusip.com2026-05-29 → 2026-06-04 · 2 obs

● 2026-05-29 16:02:52
● 2026-06-04 23:01:20

●NSphdns2.focusip.com2026-05-29 → 2026-06-04 · 2 obs

● 2026-05-29 16:02:52
● 2026-06-04 23:01:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ac	a0.nic.ac, a2.nic.ac, b0.nic.ac, c0.nic.ac	8 records
anthropic.ac	phdns1.focusip.com, phdns2.focusip.com	-

✅ Authoritative Response

Server:3.224.149.80

NS records: phdns1.focusip.com, phdns2.focusip.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for anthropic.ac (unsigned zone)

⏱️ Timing

Total: 745ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`phdns1.focusip.com, phdns2.focusip.com`
TXT	1	`v=spf1 -all`
SOA	1	`phdns1.focusip.com hostmaster.focusip.co`

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (a0.nic.ac, a2.nic.ac, b0.nic.ac...)

Analysis

Name Servers

anthropic.ac has two authoritative name servers — phdns1.focusip.com and phdns2.focusip.com.

anthropic.ac has the same name server delegation as a number of other domains, such as patent-efiling.com, anthropic.vg, anthropic.com.ph and two more.

phdns1.focusip.com directs to 3.224.149.80 and phdns2.focusip.com directs to 18.233.218.157; each host name points to exactly one IP number.

anthropic.ac - robtex.com

anthropic.ac

ac