`mail.opened.us`

DNSSEC	⚠️ Not signed
A	52.9.7.73^{🇺🇸 Amazon52.9.0.0/16 EC2 SFO prefix}
		PTR	`mail.opened.us`

`opened.us`

	DNSSEC	⚠️ Not signed
	A	52.52.88.54^{🇺🇸 Amazon52.52.0.0/15 EC2 SFO prefix}
	NS	`arely.ns.cloudflare.com` ⭐
	NS	`giancarlo.ns.cloudflare.com`
	MX	`mail.opened.us` ⭐
	TXT	`v=spf1 ip4:52.9.7.73 ~all`
	SOA	`arely.ns.cloudflare.com`dns@cloudflare.com serial=2410109484

PTR for

73.7.9.52.in-addr.arpa

MX for

unist.net

opened.us

Same first word

mail.chicappa.jp

mail.123hjemmeside.no

mail.fantasyleague.cc

mail.ufcfan.org

mail.ge

mail.egoism.jp

mail.jpn.org

mail.run

mail.edu.rs

mail.lt

mail.vn

mail.sl

mail.gov.mu

mail.gov.in

mail.pk

mail.uz

mail.clinic

mail.bm

mail.com.pk

mail.hl.cn

mail.nhs.uk

mail.hotmail

mail.gov.om

mail.canon

mail.net.hk

mail.caa.li

mail.as

mail.ir

mail.net.ru

mail.cz

mail.gov.ms

mail.so

mail.ind.in

mail.com.in

mail.noip.us

mail.hippy.jp

mail.eating-organic.net

mail.ba.gov.br

mail.com

mail.inf.br

mail.4u.com

mail.edu.tw

mail.gov.rs

mail.dnsalias.net

mail.pro.br

mail.ne.jp

mail.co.jp

mail.be

mail.com.vn

mail.how

mail.in-brb.de

mail.ro

mail.com.hk

mail.neustar

mail.ao

mail.pw

mail.broker

mail.school

mail.land

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mail.edu.ge

mail.ps

mail.edu.ee

mail.gouv.ci

mail.gi

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mail.mil.id

mail.k12.vt.us

mail.photos

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mail.ooo

mail.cloudaccess.net

mail.girly.jp

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mail.or.id

mail.kim

mail.md

mail.edu.tt

mail.si

mail.gov.rw

mail.gov.bs

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mail.je

mail.ks.ua

mail.org.br

mail.dj

mail.technology

mail.edu.ru

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mail.whitesnow.jp

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imal.co.uk

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DNS History

1 record (1 active, 0 former)

●A52.9.7.732026-06-04 → 2026-07-22 · 2 obs

● 2026-06-04 03:44:18
● 2026-07-22 02:33:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	y.cctld.us, m.cctld.us, b.cctld.us, k.cctld.us...	-
opened.us	giancarlo.ns.cloudflare.com, arely.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.44.5

NS records: giancarlo.ns.cloudflare.com, arely.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for opened.us (unsigned zone)

⏱️ Timing

Total: 521ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`52.9.7.73`

Analysis

Mail Server Role

mail.opened.us acts as a mail server for unist.net and opened.us.

IP Addresses

mail.opened.us has exactly one IP address — 52.9.7.73.

Other host names share IP numbers with mail.opened.us; ec2-52-9-7-73.us-west-1.compute.amazonaws.com is one such example.

mail.opened.us - robtex.com

mail.opened.us

opened.us