`mail.heffern.com`

	CNAME	`portal.office.com`
	CNAME	`admin-portal.office.com`
	CNAME	`m365adminportal-prod-defaultgeo.trafficmanager.net`
	DNSSEC	⚠️ Not signed

`heffern.com`

	DNSSEC	⚠️ Not signed
	A	44.208.236.27^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
	NS	`ns73.worldnic.com` ⭐
	NS	`ns74.worldnic.com`
	MX	`heffern-com.mail.protection.outlook.com` ⭐
	TXT	`v=spf1 include:spf.protection.outlook.com ip4:71.86.30.178 ip4:74.3.22.233 ip...`
	SOA	`NS73.WORLDNIC.com`namehost@WORLDNIC@com serial=124112513

Same first word

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DNS History

2 records (1 active, 1 former)

○A71.86.30.1782017-03-13 → 2017-03-13 · 2 obs

● 2017-03-13 22:57:56
○ 2026-03-26 18:44:00

●CNAMEportal.office.com2026-03-26 → 2026-03-26 · 1 obs

● 2026-03-26 18:44:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
heffern.com	ns73.worldnic.com, ns74.worldnic.com	2 records

✅ Authoritative Response

Server:162.159.26.27

NS records: ns73.worldnic.com, ns74.worldnic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for heffern.com (unsigned zone)

⏱️ Timing

Total: 121ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`portal.office.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns73.worldnic.com, ns74.worldnic.com)

mail.heffern.com - robtex.com

mail.heffern.com

heffern.com