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preffgroup.com

DNSSEC⚠️ Not signed
A2a01:238:20a:202:1086::🇩🇪 STRATO2a01:238:20a::/48 Strato AG
PTRw86.rzone.de
A81.169.145.86🇩🇪 STRATO81.169.144.0/22 AG
NSdocks05.rzone.de ⭐
A2001:8d8:fe:53:5747:2a74:d:5🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRdocks05.rzone.de
A217.160.80.132🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRdocks05.rzone.de
NSshades11.rzone.de
A2607:f1c0:fe:53:185:132:34:138🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRshades11.rzone.de
A185.132.34.138🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)
PTRshades11.rzone.de
MXsmtpin.rzone.de ⭐
A2a01:238:20a:202:50f0::1097🇩🇪 STRATO2a01:238:20a::/48 Strato AG
PTRsmtpin.rzone.de
A81.169.145.97🇩🇪 STRATO81.169.144.0/22 AG
PTRsmtpin.rzone.de
SOAdocks05.rzone.dehostmaster@strato-rz.de 2020-06-24 #14

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1786766169

Subdomains

mail.preffgroup.com

Same first word

preffgroup.com

DNS History

13 records (5 active, 8 former)

20162017201820192020202120222023202420252026NSdocks05.rzone.deshades11.rzone.de1.ns-ebiz.de2.ns-ebiz.de3.ns-ebiz.de4.ns-ebiz.deMXsmtpin.rzone.demail.preffgroup.comA2a01:238:20a:202:1086::81.169.145.86212.83.43.632a01:238:20a:202:1158::81.169.145.158
○NS1.ns-ebiz.de2015-08-12 → 2017-03-23 · 4 obs
● 2015-08-12 11:15:28
● 2017-03-23 23:28:02
○ 2020-03-07 01:05:06
○ 2026-08-15 04:04:58
○NS2.ns-ebiz.de2015-08-12 → 2017-03-23 · 4 obs
● 2015-08-12 11:15:28
● 2017-03-23 23:28:02
○ 2020-03-07 01:05:06
○ 2026-08-15 04:04:58
○NS3.ns-ebiz.de2015-08-12 → 2017-03-23 · 4 obs
● 2015-08-12 11:15:28
● 2017-03-23 23:28:02
○ 2020-03-07 01:05:06
○ 2026-08-15 04:04:58
○NS4.ns-ebiz.de2015-08-12 → 2017-03-23 · 4 obs
● 2015-08-12 11:15:28
● 2017-03-23 23:28:02
○ 2020-03-07 01:05:06
○ 2026-08-15 04:04:58
●NSdocks05.rzone.de2020-03-07 → 2026-08-15 · 3 obs
○ 2017-03-23 23:28:02
● 2020-03-07 01:05:06
● 2026-08-15 04:04:58
●NSshades11.rzone.de2020-03-07 → 2026-08-15 · 3 obs
○ 2017-03-23 23:28:02
● 2020-03-07 01:05:06
● 2026-08-15 04:04:58
○MXmail.preffgroup.com2015-08-12 → 2017-03-23 · 4 obs
● 2015-08-12 11:15:28
● 2017-03-23 23:28:02
○ 2020-03-07 01:05:06
○ 2026-08-15 04:04:58
●MXsmtpin.rzone.de2020-03-07 → 2026-08-15 · 3 obs
○ 2017-03-23 23:28:02
● 2020-03-07 01:05:06
● 2026-08-15 04:04:58
○A212.83.43.632015-08-12 → 2017-03-23 · 4 obs
● 2015-08-12 11:15:28
● 2017-03-23 23:28:02
○ 2020-03-07 01:05:06
○ 2026-08-15 04:04:58
●A2a01:238:20a:202:1086::2026-05-08 → 2026-08-15 · 3 obs
○ 2020-03-07 01:05:06
● 2026-05-08 18:20:52
● 2026-08-15 04:04:58
○A2a01:238:20a:202:1158::2020-03-07 → 2020-03-07 · 4 obs
○ 2017-03-23 23:28:02
● 2020-03-07 01:05:06
○ 2026-05-08 18:20:52
○ 2026-08-15 04:04:58
○A81.169.145.1582020-03-07 → 2020-03-07 · 4 obs
○ 2017-03-23 23:28:02
● 2020-03-07 01:05:06
○ 2026-05-08 18:20:52
○ 2026-08-15 04:04:58
●A81.169.145.862026-05-08 → 2026-08-15 · 3 obs
○ 2020-03-07 01:05:06
● 2026-05-08 18:20:52
● 2026-08-15 04:04:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comi.gtld-servers.net, g.gtld-servers.net, e.gtld-servers.net, b.gtld-servers.net...-
preffgroup.comdocks05.rzone.de, shades11.rzone.de-

✅ Authoritative Response

Server:217.160.80.132

NS records: docks05.rzone.de, shades11.rzone.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for preffgroup.com (unsigned zone)

⏱️ Timing

Total: 611ms | Queries: -

📄 Records

TypeCountSample Data
A181.169.145.86
AAAA12a01:238:20a:202:1086::
NS2docks05.rzone.de, shades11.rzone.de
MX1smtpin.rzone.de (pri: 5)
SOA1docks05.rzone.de hostmaster.strato-rz.de

Analysis

Hierarchy

mail.preffgroup.com is delegated beneath preffgroup.com.

IP Addresses

preffgroup.com has two IP addresses: 81.169.145.86 and 2a01:238:20a:202:1086::

neppel.com, lw-schleifen.de, pdfd.de and two other host names share IP numbers with preffgroup.com.

Name Servers

preffgroup.com is served by two delegated name servers, docks05.rzone.de and shades11.rzone.de.

preffgroup.com uses the same name servers as several other domains — among them schwenkmeister.de, hardering.eu, knape-online.de and two more.

There is at least partial name server overlap between preffgroup.com and other domains — rechtsanwalt-amin.de, wallpower.net, linea-dentale.eu and two more among them.

These name servers regularly appear alongside shades03.rzone.de, shades13.rzone.de, docks08.rzone.de and 7 other name servers in NS record sets.

Each of the two host names carries two IP addresses: docks05.rzone.de points to 217.160.80.132 and 2001:8d8:fe:53:5747:2a74:d:5, and shades11.rzone.de points to 185.132.34.138 and 2607:f1c0:fe:53:185:132:34:138.

Mail Servers

Mail for preffgroup.com is handled by a single mail server, smtpin.rzone.de.

preffgroup.com uses an identical mail server configuration to several other domains — among them sytics.com, sielapotheke.de, iesservice.de and two more.

smtpin.rzone.de carries two IP numbers: 81.169.145.97 and 2a01:238:20a:202:50f0::1097.