mail.duerr-lab.de - robtex.com

mail.duerr-lab.de

DNSSEC⚠️ Not signed
A2a01:4f8:160:41e3::abf3🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRmail.duerr-lab.de
A176.9.156.42🇩🇪 Hetzner176.9.0.0/16 HETZNER-RZ-FKS-BLK4
TXTv=spf1 a -all ra=postmaster

duerr-lab.de

DNSSEC⚠️ Not signed
A2a01:4f8:160:41e3::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
A176.9.156.60🇩🇪 Hetzner176.9.0.0/16 HETZNER-RZ-FKS-BLK4
NSroot-dns.netcup.net ⭐
NSsecond-dns.netcup.net
NSthird-dns.netcup.net
MXmail.duerr-lab.de ⭐
TXTv=spf1 mx -all ra=postmaster
SOAroot-dns.netcup.netdnsadmin@netcup.net 2026-04-22 #24

PTR for

42.156.9.176.in-addr.arpa
3.f.b.a.0.0.0.0.0.0.0.0.0.0.0.0.3.e.1.4.0.6.1.0.8.f.4.0.1.0.a.2.ip6.arpa

MX for

duerr-lab.de

Same first word

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DNS History

2 records (2 active, 0 former)

A176.9.156.422a01:4f8:160:41e3::abf3
●A176.9.156.422026-05-09 → 2026-05-10 · 2 obs
● 2026-05-09 19:49:24
● 2026-05-10 07:42:34
●A2a01:4f8:160:41e3::abf32026-05-09 → 2026-05-10 · 2 obs
● 2026-05-09 19:49:24
● 2026-05-10 07:42:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
duerr-lab.desecond-dns.netcup.net, third-dns.netcup.net, root-dns.netcup.net-

✅ Authoritative Response

Server:46.38.225.225

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duerr-lab.de (unsigned zone)

⏱️ Timing

Total: 893ms | Queries: -

📄 Records

TypeCountSample Data
A1176.9.156.42
AAAA12a01:4f8:160:41e3::abf3
TXT1v=spf1 a -all ra=postmaster

Analysis

Mail Server Role

mail.duerr-lab.de is the mail server for duerr-lab.de.

IP Addresses

mail.duerr-lab.de resolves to two IP numbers: 2a01:4f8:160:41e3::abf3 and 176.9.156.42.