`mail.understandbitcoin.com`

DNSSEC	⚠️ Not signed
A	13.248.169.48^{🇺🇸 Amazon13.248.160.0/20}
		PTR	`a904c694c05102f30.awsglobalaccelerator.com`
A	76.223.54.146^{🇺🇸 Amazon76.223.48.0/20}
NS	`ns1.dan.com` ⭐ ⚠️ Not in parent delegation
		A	2603:5:2125::43^{🇺🇸 GODADDY-DNS2603:5:2120::/44}
			PTR	`ns1.dan.com`
		A	97.74.98.67^{🇺🇸 GODADDY-DNS97.74.98.0/23}
			PTR	`ns1.dan.com`
NS	`ns2.dan.com` ⚠️ Not in parent delegation
		A	2603:5:2225::43^{🇺🇸 GODADDY-DNS2603:5:2220::/44}
			PTR	`ns2.dan.com`
		A	173.201.66.67^{🇺🇸 GODADDY-DNS173.201.66.0/23}
			PTR	`ns2.dan.com`
SOA	`ns1.dan.com`dns@jomax.net 2025-10-01 #0

`understandbitcoin.com`

	DNSSEC	⚠️ Not signed
	A	13.248.169.48^{🇺🇸 Amazon13.248.160.0/20}
	A	76.223.54.146^{🇺🇸 Amazon76.223.48.0/20}
	NS	`ns1.dan.com` ⭐
	NS	`ns2.dan.com`
	SOA	`ns1.dan.com`dns@jomax.net 2025-10-01 #0

Previously MX for

understandbitcoin.com

Same first word

mail.directory

mail.freemyip.com

mail.com.tw

mail.hk.com

mail.mh

mail.gov.mw

mail.gov.bn

mail.mmafan.biz

mail.ky

mail.synology-diskstation.de

mail.schoolbus.jp

mail.cn.ua

mail.uz.ua

mail.cool

mail.uk

mail.ru.com

mail.littlestar.jp

mail.com.se

mail.gov.ao

mail.me

mail.ac.gov.br

mail.edu.me

mail.pr

mail.mlbfan.org

mail.ph

mail.nhlfan.net

mail.gru.br

mail.gl

mail.link

mail.no

mail.net.vn

mail.lib.wy.us

mail.pictures

mail.gov.kg

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mail.net

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mail.support

mail.de

mail.hacca.jp

mail.moo.jp

mail.new

mail.teva

mail.gov.al

mail.kapsi.fi

mail.cutegirl.jp

mail.gov.az

mail.io

mail.cash

mail.eus

mail.firewall-gateway.com

mail.pro

mail.pupu.jp

mail.vivian.jp

mail.df.gov.br

mail.ci

mail.chirurgiens-dentistes.fr

mail.frenchkiss.jp

mail.blogspot.be

mail.go.kr

mail.my-gateway.de

mail.wedding

mail.za.bz

mail.to

mail.tf

mail.ba

mail.lviv.ua

mail.ki

mail.lima-city.de

mail.mysecuritycamera.com

mail.microsoft

mail.mil.tw

mail.org.in

mail.deals

mail.edu.pl

mail.cfolks.pl

mail.cm

mail.go.th

mail.mil.cn

mail.poivron.org

mail.dnshome.de

mail.jp

mail.mp

mail.ac

mail.fund

mail.edu.bi

mail.uk.com

mail.mysecuritycamera.net

mail.glass

mail.mil.kg

mail.dog

mail.ddns.me

mail.gov.bh

mail.tours

mail.no-ip.info

mail.na

mail.gov.cl

mail.srl

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imal.de

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mail.hl.cn

mail.nhs.uk

mail.hotmail

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liam.media

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mail.k12.vt.us

DNS History

8 records (4 active, 4 former)

●NSns1.dan.com2026-05-10 → 2026-05-10 · 1 obs

● 2026-05-10 22:45:00

●NSns2.dan.com2026-05-10 → 2026-05-10 · 1 obs

● 2026-05-10 22:45:00

○MXp.nsm.ctmail.com2016-04-21 → 2016-04-21 · 2 obs

● 2016-04-21 17:42:16
○ 2026-05-10 22:45:00

●A13.248.169.482026-05-10 → 2026-05-10 · 2 obs

○ 2016-11-19 01:42:36
● 2026-05-10 22:45:00

○A173.254.28.832015-05-23 → 2016-01-29 · 4 obs

● 2015-05-23 18:24:26
● 2016-01-29 15:43:28
○ 2016-04-21 17:42:16
○ 2026-05-10 22:45:00

○A74.220.199.92016-11-19 → 2016-11-19 · 3 obs

○ 2016-04-21 17:42:16
● 2016-11-19 01:42:36
○ 2026-05-10 22:45:00

●A76.223.54.1462026-05-10 → 2026-05-10 · 2 obs

○ 2016-11-19 01:42:36
● 2026-05-10 22:45:00

○A8.5.1.412016-04-21 → 2016-04-21 · 4 obs

○ 2016-01-29 15:43:28
● 2016-04-21 17:42:16
○ 2016-11-19 01:42:36
○ 2026-05-10 22:45:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, a.gtld-servers.net, e.gtld-servers.net, k.gtld-servers.net...	-
understandbitcoin.com	ns1.dan.com, ns2.dan.com	4 records

✅ Authoritative Response

Server:173.201.66.67

NS records: ns1.dan.com, ns2.dan.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for understandbitcoin.com (unsigned zone)

⏱️ Timing

Total: 164ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`13.248.169.48, 76.223.54.146`
NS	2	`ns1.dan.com, ns2.dan.com`
SOA	1	`ns1.dan.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.dan.com, ns1.dan.com, ns2.dan.com...)

Analysis

IP Addresses

mail.understandbitcoin.com resolves to two IP numbers: 13.248.169.48 and 76.223.54.146.

other host names including babybiketrailers.com, deckmore.com, wpu.xyz, diatronic.com and (0x706f726e)fix.xyz share IP numbers with mail.understandbitcoin.com.

Name Servers

mail.understandbitcoin.com is delegated to two name servers ns1.dan.com and ns2.dan.com.

mail.understandbitcoin.com shares the same name server setup as other domains, for instance armariosmurcia.com, cheapertrade.com, mountainbowl.com, mx.0y.nl and kellycustombuilders.com.

mail.understandbitcoin.com at least partially shares name servers with other domains, for instance gki.nl, guilery.com, intranets.co.za, trybeen.com and (0x787878)mint.com.

These name servers are commonly used with ns1.undeveloped.com, ns2.undeveloped.com and verification-6ckgmra2.ns3.dan.hosting.

Host names with two IP numbers:

The host name ns1.dan.com points to 2603:5:2125::43 and 97.74.98.67; the host name ns2.dan.com points to 2603:5:2225::43 and 173.201.66.67.

mail.understandbitcoin.com - robtex.com