prep.de - dns.ninja

prep.de

DNSSEC⚠️ Not signed
A103.168.172.37🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRwww.messagingengine.com
A103.168.172.52🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
NSns1.messagingengine.com ⭐
A162.159.24.178Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns1.messagingengine.com
NSns2.messagingengine.com
A162.159.25.191Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns2.messagingengine.com
MXus1-smtp.messagingengine.com ⭐
A103.168.172.216🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-01.messagingengine.com
A103.168.172.217🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-02.messagingengine.com
A103.168.172.218🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-03.messagingengine.com
A103.168.172.219🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-04.messagingengine.com
A103.168.172.220🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-05.messagingengine.com
A103.168.172.221🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-06.messagingengine.com
A103.168.172.222🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-07.messagingengine.com
A103.168.172.223🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-08.messagingengine.com
MXus2-smtp.messagingengine.com(20)
A202.12.124.216TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-01.messagingengine.com
A202.12.124.217TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-02.messagingengine.com
A202.12.124.218TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-03.messagingengine.com
A202.12.124.219TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-04.messagingengine.com
TXTv=spf1 include:spf.messagingengine.com ?all
SOAns1.messagingengine.compostmaster@messagingengine.com 2026-07-05 #0

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=1785098109

Same first word

prep.plus
prep.net
prep.life
prep.nl
prep.biz
prep.uz
prep.fr
prep.clinic
prep.golf
prep.org
prep.mx
prep.training
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prep.co
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prep.ai
prep.works
prep.us
prep.pl
prep.at
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prep.es
prep.ch
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prep.love
prep.studio
prep.org.au
prep.ng
prep.me
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prep.social
prep.study
prep.dev
prep.pro
prep.center
prep.ly
prep.kz
prep.chat
prep.org.br
prep.onl
prep.de
prep.mobi
prep.com.mx
prep.org.mx
prep.ac.th
prep.ee
prep.dk
prep.it
prep.com.au
prep.vn
prep.no

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repp.dk
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DNS History

14 records (6 active, 8 former)

20162017201820192020202120222023202420252026NSns1.messagingengine.comns2.messagingengine.comns35.1und1.dens36.1und1.deMXus1-smtp.messagingengine.comus2-smtp.messagingengine.comin1-smtp.messagingengine.comin2-smtp.messagingengine.commx00.kundenserver.demx01.kundenserver.deA103.168.172.37103.168.172.52217.160.231.16182.165.98.37
●NSns1.messagingengine.com2026-02-15 → 2026-07-26 · 3 obs
○ 2017-02-09 19:46:42
● 2026-02-15 10:22:20
● 2026-07-26 20:57:58
●NSns2.messagingengine.com2026-02-15 → 2026-07-26 · 3 obs
○ 2017-02-09 19:46:42
● 2026-02-15 10:22:20
● 2026-07-26 20:57:58
○NSns35.1und1.de2015-07-05 → 2017-02-09 · 4 obs
● 2015-07-05 18:23:24
● 2017-02-09 19:46:42
○ 2026-02-15 10:22:20
○ 2026-07-26 20:57:58
○NSns36.1und1.de2015-07-05 → 2017-02-09 · 4 obs
● 2015-07-05 18:23:24
● 2017-02-09 19:46:42
○ 2026-02-15 10:22:20
○ 2026-07-26 20:57:58
○MXin1-smtp.messagingengine.com2026-02-15 → 2026-02-15 · 4 obs
○ 2017-02-09 19:46:42
● 2026-02-15 10:22:20
○ 2026-07-08 06:00:36
○ 2026-07-26 20:57:58
○MXin2-smtp.messagingengine.com2026-02-15 → 2026-02-15 · 4 obs
○ 2017-02-09 19:46:42
● 2026-02-15 10:22:20
○ 2026-07-08 06:00:36
○ 2026-07-26 20:57:58
○MXmx00.kundenserver.de2015-07-05 → 2017-02-09 · 4 obs
● 2015-07-05 18:23:24
● 2017-02-09 19:46:42
○ 2026-02-15 10:22:20
○ 2026-07-26 20:57:58
○MXmx01.kundenserver.de2015-07-05 → 2017-02-09 · 4 obs
● 2015-07-05 18:23:24
● 2017-02-09 19:46:42
○ 2026-02-15 10:22:20
○ 2026-07-26 20:57:58
●MXus1-smtp.messagingengine.com2026-07-08 → 2026-07-26 · 3 obs
○ 2026-02-15 10:22:20
● 2026-07-08 06:00:36
● 2026-07-26 20:57:58
●MXus2-smtp.messagingengine.com2026-07-08 → 2026-07-26 · 3 obs
○ 2026-02-15 10:22:20
● 2026-07-08 06:00:36
● 2026-07-26 20:57:58
●A103.168.172.372026-02-15 → 2026-07-26 · 3 obs
○ 2017-02-09 19:46:42
● 2026-02-15 10:22:20
● 2026-07-26 20:57:58
●A103.168.172.522026-02-15 → 2026-07-26 · 3 obs
○ 2017-02-09 19:46:42
● 2026-02-15 10:22:20
● 2026-07-26 20:57:58
○A217.160.231.1612016-07-04 → 2017-02-09 · 5 obs
○ 2016-03-15 09:00:30
● 2016-07-04 08:18:58
● 2017-02-09 19:46:42
○ 2026-02-15 10:22:20
○ 2026-07-26 20:57:58
○A82.165.98.372015-07-05 → 2016-03-15 · 4 obs
● 2015-07-05 18:23:24
● 2016-03-15 09:00:30
○ 2016-07-04 08:18:58
○ 2026-07-26 20:57:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
prep.dens1.messagingengine.com, ns2.messagingengine.com-

✅ Authoritative Response

Server:162.159.24.178

NS records: ns1.messagingengine.com, ns2.messagingengine.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for prep.de (unsigned zone)

⏱️ Timing

Total: 660ms | Queries: -

📄 Records

TypeCountSample Data
A2103.168.172.37, 103.168.172.52
NS2ns1.messagingengine.com, ns2.messagingengine.com
MX2us1-smtp.messagingengine.com (pri: 10), us2-smtp.messagingengine.com (pri: 20)
TXT1v=spf1 include:spf.messagingengine.com ?
SOA1ns1.messagingengine.com postmaster.messa

Analysis

IP Addresses

prep.de points to the IP addresses 103.168.172.37 and 103.168.172.52

Among the host names that share IP numbers with prep.de are jmg.eml.cc, comeunitynow.org, peabody.me and two others.

Name Servers

The NS records for prep.de delegate to ns1.messagingengine.com and ns2.messagingengine.com.

prep.de has the same name server delegation as a number of other domains, such as moravit.com, guen.in, jossrichman.com and two more.

prep.de and other domains like guatefam.org share at least a portion of their name servers.

Both ns1.messagingengine.com and ns2.messagingengine.com have a single IP address each — ns1.messagingengine.com resolves to 162.159.24.178 while ns2.messagingengine.com resolves to 162.159.25.191.

Mail Servers

The MX records for prep.de point to two mail servers: us1-smtp.messagingengine.com and us2-smtp.messagingengine.com.

prep.de has the same mail server arrangement as a number of other domains, for example archives.foobar.com, cremoznik.si, azonet.com and two more.

prep.de has mail servers in common with other domains — stach.co.uk being one example.

Host names resolving to 8 IP numbers:

us1-smtp.messagingengine.com maps to 103.168.172.216, 103.168.172.217, 103.168.172.218 and 5 additional IP addresses.

Hosts pointing to four IP addresses:

us2-smtp.messagingengine.com resolves to 202.12.124.216, 202.12.124.217, 202.12.124.218 and 202.12.124.219.