`mail.merganser.us`

DNSSEC	⚠️ Not signed
A	35.173.163.21^{🇺🇸 Amazon35.168.0.0/13 EC2 IAD prefix}
		PTR	`ec2-35-173-163-21.compute-1.amazonaws.com`
TXT	`v=spf1 a mx ~all`

`merganser.us`

	DNSSEC	⚠️ Not signed
	A	35.173.163.21^{🇺🇸 Amazon35.168.0.0/13 EC2 IAD prefix}
	NS	`ns23.worldnic.com` ⭐
	NS	`ns24.worldnic.com`
	MX	`mail.merganser.us` ⭐
	TXT	`v=spf1 a mx ~all`
	SOA	`NS23.WORLDNIC.COM`namehost@WORLDNIC.COM serial=126021519

MX for

merganser.us

Same first word

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DNS History

4 records (1 active, 3 former)

●A35.173.163.212026-03-24 → 2026-04-28 · 3 obs

○ 2016-08-11 07:36:30
● 2026-03-24 22:56:38
● 2026-04-28 08:46:22

○A52.34.168.872015-12-27 → 2015-12-27 · 4 obs

○ 2015-08-22 21:00:54
● 2015-12-27 22:57:00
○ 2016-03-25 02:38:50
○ 2026-04-28 08:46:22

○A52.71.101.2462016-03-25 → 2016-08-11 · 5 obs

○ 2015-12-27 22:57:00
● 2016-03-25 02:38:50
● 2016-08-11 07:36:30
○ 2026-03-24 22:56:38
○ 2026-04-28 08:46:22

○A64.34.183.2002015-08-22 → 2015-08-22 · 3 obs

● 2015-08-22 21:00:54
○ 2015-12-27 22:57:00
○ 2026-04-28 08:46:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	b.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us...	-
merganser.us	ns23.worldnic.com, ns24.worldnic.com	-

✅ Authoritative Response

Server:162.159.26.132

NS records: ns23.worldnic.com, ns24.worldnic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for merganser.us (unsigned zone)

⏱️ Timing

Total: 610ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`35.173.163.21`
TXT	1	`v=spf1 a mx ~all`

Analysis

Mail Server Role

mail.merganser.us functions as a mail server for merganser.us.

IP Addresses

mail.merganser.us resolves to one IP number: 35.173.163.21.

Other host names, for instance ec2-35-173-163-21.compute-1.amazonaws.com, merganser.us and extier.com share IP numbers with mail.merganser.us.

mail.merganser.us - robtex.com