`ihdifference.com`

DNSSEC	⚠️ Not signed
NS	`ns1.aetna.com` ⭐
		A	206.213.251.100^{🇺🇸 AS6646206.213.251.0/24}
			PTR	`ns1.aetna.com`
NS	`ns2.aetna.com`
		A	206.213.209.100^{🇺🇸 AS6646206.213.209.0/24}
			PTR	`ns2.aetna.com`
NS	`ns7.aetna.com` ⚠️ Not in zone NS records
		A	12.10.217.80^{🇺🇸 AS2261012.10.217.0/24}
			PTR	`ns7.aetna.com`
TXT	`v=spf1 -all`
SOA	`ns1.aetna.com`hostmaster@aetna.com serial=7

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774587847

Same first word

ihdifference.com

DNS History

16 records (3 active, 13 former)

○NSns-1451.awsdns-53.org2016-12-19 → 2017-11-11 · 4 obs

● 2016-12-19 15:43:38
● 2017-11-11 15:50:26
○ 2026-02-24 19:06:48
○ 2026-03-27 05:24:54

○NSns-1975.awsdns-54.co.uk2016-12-19 → 2017-11-11 · 4 obs

● 2016-12-19 15:43:38
● 2017-11-11 15:50:26
○ 2026-02-24 19:06:48
○ 2026-03-27 05:24:54

○NSns-287.awsdns-35.com2016-12-19 → 2017-11-11 · 4 obs

● 2016-12-19 15:43:38
● 2017-11-11 15:50:26
○ 2026-02-24 19:06:48
○ 2026-03-27 05:24:54

○NSns-822.awsdns-38.net2016-12-19 → 2017-11-11 · 4 obs

● 2016-12-19 15:43:38
● 2017-11-11 15:50:26
○ 2026-02-24 19:06:48
○ 2026-03-27 05:24:54

●NSns1.aetna.com2026-02-24 → 2026-03-27 · 3 obs

○ 2017-11-11 15:50:26
● 2026-02-24 19:06:48
● 2026-03-27 05:24:54

●NSns2.aetna.com2026-02-24 → 2026-03-27 · 3 obs

○ 2017-11-11 15:50:26
● 2026-02-24 19:06:48
● 2026-03-27 05:24:54

●NSns7.aetna.com2026-02-24 → 2026-03-27 · 3 obs

○ 2017-11-11 15:50:26
● 2026-02-24 19:06:48
● 2026-03-27 05:24:54

○A52.219.20.502017-11-11 → 2017-11-11 · 4 obs

○ 2016-12-19 15:43:38
● 2017-11-11 15:50:26
○ 2026-02-24 19:06:48
○ 2026-03-27 05:24:54

○A52.219.20.902017-11-11 → 2017-11-11 · 4 obs

○ 2016-12-19 15:43:38
● 2017-11-11 15:50:26
○ 2026-02-24 19:06:48
○ 2026-03-27 05:24:54

○A52.219.24.432017-11-11 → 2017-11-11 · 4 obs

○ 2016-12-19 15:43:38
● 2017-11-11 15:50:26
○ 2026-02-24 19:06:48
○ 2026-03-27 05:24:54

○A52.219.24.502017-11-11 → 2017-11-11 · 4 obs

○ 2016-12-19 15:43:38
● 2017-11-11 15:50:26
○ 2026-02-24 19:06:48
○ 2026-03-27 05:24:54

○A52.219.28.72017-11-11 → 2017-11-11 · 4 obs

○ 2016-12-19 15:43:38
● 2017-11-11 15:50:26
○ 2026-02-24 19:06:48
○ 2026-03-27 05:24:54

○A54.231.235.262016-12-19 → 2016-12-19 · 3 obs

● 2016-12-19 15:43:38
○ 2017-11-11 15:50:26
○ 2026-03-27 05:24:54

○A54.231.236.422017-11-11 → 2017-11-11 · 4 obs

○ 2016-12-19 15:43:38
● 2017-11-11 15:50:26
○ 2026-02-24 19:06:48
○ 2026-03-27 05:24:54

○A54.231.237.262017-11-11 → 2017-11-11 · 4 obs

○ 2016-12-19 15:43:38
● 2017-11-11 15:50:26
○ 2026-02-24 19:06:48
○ 2026-03-27 05:24:54

○A54.231.237.302017-11-11 → 2017-11-11 · 4 obs

○ 2016-12-19 15:43:38
● 2017-11-11 15:50:26
○ 2026-02-24 19:06:48
○ 2026-03-27 05:24:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, g.gtld-servers.net...	-
ihdifference.com	ns1.aetna.com, ns2.aetna.com, ns7.aetna.com	3 records

✅ Authoritative Response

Server:12.10.217.80

NS records: ns1.aetna.com, ns2.aetna.com, ns7.aetna.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ihdifference.com (unsigned zone)

⏱️ Timing

Total: 190ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns2.aetna.com, ns1.aetna.com`
TXT	1	`v=spf1 -all`
SOA	1	`ns1.aetna.com hostmaster.aetna.com`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.aetna.com, ns2.aetna.com, ns7.aetna.com)

Analysis

Name Servers

The delegation for ihdifference.com is handled by three name servers: ns1.aetna.com, ns2.aetna.com and ns7.aetna.com.

ihdifference.com at least partially shares name servers with other domains, for instance aetnauhc.com, aetna-foundation.com, aetna1dental.com, medicare-advantra.org and aetnaintegratedinformatics.com.

These name servers are commonly used with a1-155.akam.net, a12-65.akam.net, a13-65.akam.net, a16-67.akam.net, a8-67.akam.net and a9-67.akam.net.

Host names with one IP number:

ns1.aetna.com points to 206.213.251.100.

ns2.aetna.com points to 206.213.209.100.

ns7.aetna.com points to 12.10.217.80.

ihdifference.com - robtex.com