seref.de - dns.ninja

seref.de

DNSSEC⚠️ Not signed
A2a01:238:20a:202:1161::🇩🇪 STRATO2a01:238:20a::/48 Strato AG
PTRwa1.rzone.de
A81.169.145.161🇩🇪 STRATO81.169.144.0/22 AG
NSdocks14.rzone.de ⭐
A2001:8d8:fe:53:5747:2a74:d:14🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRdocks14.rzone.de
A217.160.80.141🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRdocks14.rzone.de
NSshades09.rzone.de
A2607:f1c0:fe:53:185:132:34:136🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRshades09.rzone.de
A185.132.34.136🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)
PTRshades09.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
SOAdocks14.rzone.dehostmaster@strato-rz.de 2021-12-19 #14

de

DNSSEC🔒 Signed (DS record present)
NSf.nic.de ⭐
NSa.nic.de
NSl.de.net ⚠️ Not in parent delegation
NSn.de.net ⚠️ Not in parent delegation
NSs.de.net ⚠️ Not in parent delegation
NSz.nic.de
SOAf.nic.dedns-operations@denic.de serial=1783154472

Same first word

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seref.com

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DNS History

10 records (5 active, 5 former)

20162017201820192020202120222023202420252026NSdocks14.rzone.deshades09.rzone.dens1.parkingcrew.netns2.parkingcrew.netMXsmtpin.rzone.deA2a01:238:20a:202:1161::81.169.145.161185.53.178.9185.53.179.6185.53.179.9
●NSdocks14.rzone.de2026-03-25 → 2026-07-04 · 3 obs
○ 2017-11-28 21:39:12
● 2026-03-25 11:42:50
● 2026-07-04 09:00:20
○NSns1.parkingcrew.net2015-05-10 → 2017-11-28 · 4 obs
● 2015-05-10 20:31:36
● 2017-11-28 21:39:12
○ 2026-03-25 11:42:50
○ 2026-07-04 09:00:20
○NSns2.parkingcrew.net2015-05-10 → 2017-11-28 · 4 obs
● 2015-05-10 20:31:36
● 2017-11-28 21:39:12
○ 2026-03-25 11:42:50
○ 2026-07-04 09:00:20
●NSshades09.rzone.de2026-03-25 → 2026-07-04 · 3 obs
○ 2017-11-28 21:39:12
● 2026-03-25 11:42:50
● 2026-07-04 09:00:20
●MXsmtpin.rzone.de2026-03-25 → 2026-07-04 · 2 obs
● 2026-03-25 11:42:50
● 2026-07-04 09:00:20
○A185.53.178.92016-11-14 → 2016-12-31 · 5 obs
○ 2016-03-30 14:14:24
● 2016-11-14 19:19:30
● 2016-12-31 12:06:50
○ 2017-11-28 21:39:12
○ 2026-07-04 09:00:20
○A185.53.179.62017-11-28 → 2017-11-28 · 4 obs
○ 2016-12-31 12:06:50
● 2017-11-28 21:39:12
○ 2026-03-25 11:42:50
○ 2026-07-04 09:00:20
○A185.53.179.92015-05-10 → 2016-03-30 · 4 obs
● 2015-05-10 20:31:36
● 2016-03-30 14:14:24
○ 2016-11-14 19:19:30
○ 2026-07-04 09:00:20
●A2a01:238:20a:202:1161::2026-03-25 → 2026-07-04 · 3 obs
○ 2017-11-28 21:39:12
● 2026-03-25 11:42:50
● 2026-07-04 09:00:20
●A81.169.145.1612026-03-25 → 2026-07-04 · 3 obs
○ 2017-11-28 21:39:12
● 2026-03-25 11:42:50
● 2026-07-04 09:00:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
def.nic.de, z.nic.de, a.nic.de-
seref.dedocks14.rzone.de, shades09.rzone.de-

✅ Authoritative Response

Server:185.132.34.136

NS records: docks14.rzone.de, shades09.rzone.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for seref.de (unsigned zone)

⏱️ Timing

Total: 1840ms | Queries: -

📄 Records

TypeCountSample Data
A181.169.145.161
AAAA12a01:238:20a:202:1161::
NS2shades09.rzone.de, docks14.rzone.de
MX1smtpin.rzone.de (pri: 5)
SOA1docks14.rzone.de hostmaster.strato-rz.de

Analysis

IP Addresses

seref.de has two IP addresses: 81.169.145.161 and 2a01:238:20a:202:1161::

visserthuis.nl, jomemg.net, nielandcoaching.org and two other host names share IP numbers with seref.de.

Name Servers

The NS records for seref.de delegate to docks14.rzone.de and shades09.rzone.de.

seref.de uses the same name servers as several other domains — among them xn--schnundschnell-xpb.de, workleds.com, family-kruse.de and two more.

There is at least partial name server overlap between seref.de and other domains — sommerfest-hof.de, maneschijn-vleesspecialiteiten.nl, quadrex-solar.de and two more among them.

These name servers regularly appear alongside shades14.rzone.de, docks17.rzone.de, shades06.rzone.de and 7 other name servers in NS record sets.

docks14.rzone.de resolves to 217.160.80.141 and 2001:8d8:fe:53:5747:2a74:d:14. Likewise, shades09.rzone.de resolves to 185.132.34.136 and 2607:f1c0:fe:53:185:132:34:136 — two IP addresses apiece.

Mail Servers

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

seref.de uses an identical mail server configuration to several other domains — among them ns.loom-it.de, dieter-keth.de, elbeimmobilien.de and two more.

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