mail.12book.de - robtex.com

mail.12book.de

DNSSEC⚠️ Not signed
A213.239.209.231🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2
PTRstatic.213-239-209-231.clients.your-server.de

12book.de

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:d54🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:84a3🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.13.84Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.132.163🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSgreg.ns.cloudflare.com ⭐
NSzoe.ns.cloudflare.com
MXmail.12book.de ⭐
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.13.84, 172.67.132.163
IPv6 hints2606:4700:3031::6815:d54, 2606:4700:3036::ac43:84a3
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=153, name=cloudflare-ech.com
SOAgreg.ns.cloudflare.comdns@cloudflare.com serial=2402631662
WOT: SAFE (62/100)
WOT: SAFE (73/100)

MX for

12book.de

Same first word

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DNS History

1 record (1 active, 0 former)

200920112013201520172019202120232025A213.239.209.231
●A213.239.209.2312008-06-29 → 2026-05-11 · 2 obs
● 2008-06-29 17:41:42
● 2026-05-11 17:34:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
12book.degreg.ns.cloudflare.com, zoe.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.149

NS records: greg.ns.cloudflare.com, zoe.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 12book.de (unsigned zone)

⏱️ Timing

Total: 550ms | Queries: -

📄 Records

TypeCountSample Data
A1213.239.209.231

Analysis

Mail Server Role

mail.12book.de acts as a mail server for 12book.de.

IP Addresses

mail.12book.de points to a single IP number: 213.239.209.231.

Other host names, for example 213-239-209-231.clients.your-server.de, static.213-239-209-231.clients.your-server.de, mail.stefanbieber.de and stefanbieber.de share IP numbers with mail.12book.de.