`mail.pentaquin.com`

CNAME	`mail.reintjens.de`
DNSSEC	⚠️ Not signed
A	2a03:4000:13:220::1^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
		PTR	`mail.reintjens.de`
A	188.68.38.44^{🇩🇪 netcup-AS188.68.36.0/22}
TXT	`google-site-verification=6MBmRmFeHP23yJ_JW2Sv4YBYO914o3YILagXW2yqgLE`

`pentaquin.com`

	DNSSEC	⚠️ Not signed
	A	2a03:4000:3b:5d::1^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
	A	185.163.118.178^{🇩🇪 netcup-AS185.163.116.0/22}
	NS	`root-dns.netcup.net` ⭐
	NS	`second-dns.netcup.net`
	NS	`third-dns.netcup.net`
	MX	`mail.reintjens.de` ⭐
	TXT	`facebook-domain-verification=jc6spk6qp8t5ls4so0eo2ur1psqp3a`
	TXT	`v=spf1 mx ~all`
	TXT	`google-site-verification=uKYzmGEWi__m7GSjTCdStOCMYxClDvv8F6R3GMiPvmA`
	SOA	`root-dns.netcup.net`dnsadmin@netcup.net 2022-09-24 #4

🔒 HSTS Preload (+subdomains)

Previously MX for

pentaquin.com

Same first word

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DNS History

5 records (1 active, 4 former)

○A2a01:488:66:1000:5c33:927d:0:12015-07-05 → 2015-07-05 · 3 obs

● 2015-07-05 03:29:00
○ 2015-11-23 00:39:56
○ 2026-05-12 04:21:56

○A2a03:4000:6:b082::12015-11-23 → 2016-06-17 · 4 obs

○ 2015-07-05 03:29:00
● 2015-11-23 00:39:56
● 2016-06-17 16:47:00
○ 2026-05-12 04:21:56

○A37.120.190.392015-11-23 → 2016-06-17 · 4 obs

○ 2015-07-05 03:29:00
● 2015-11-23 00:39:56
● 2016-06-17 16:47:00
○ 2026-05-12 04:21:56

○A92.51.146.1252015-07-05 → 2015-07-05 · 3 obs

● 2015-07-05 03:29:00
○ 2015-11-23 00:39:56
○ 2026-05-12 04:21:56

●CNAMEmail.reintjens.de2026-05-12 → 2026-05-12 · 1 obs

● 2026-05-12 04:21:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
pentaquin.com	root-dns.netcup.net, second-dns.netcup.net, third-dns.netcup.net	-

✅ Authoritative Response

Server:188.68.63.68

NS records: root-dns.netcup.net, second-dns.netcup.net, third-dns.netcup.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for pentaquin.com (unsigned zone)

⏱️ Timing

Total: 806ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`mail.reintjens.de`

Analysis

IP Addresses

mail.pentaquin.com points to two IP numbers: 2a03:4000:13:220::1 and 188.68.38.44.

Other host names, for instance mail.reintjens.de share IP numbers with mail.pentaquin.com.

mail.pentaquin.com - robtex.com