a5u.de - robtex.com

a5u.de

DNSSEC⚠️ Not signed
A2a03:4000:30:c203::15:410🇩🇪 netcup-AS
A46.38.249.145🇩🇪 netcup-AS
NSroot-dns.netcup.net ⭐
A2a03:4000:0:1::e1e1🇩🇪 netcup-AS
PTRroot-dns.netcup.net
A46.38.225.225🇩🇪 netcup-AS
PTRroot-dns.netcup.net
NSsecond-dns.netcup.net
A2a03:4000:2:24b::c7c7🇩🇪 netcup-AS
PTRsecond-dns.netcup.net
A37.221.199.199🇩🇪 netcup-AS
PTRsecond-dns.netcup.net
NSthird-dns.netcup.net
A2a03:4001:0:106::3f44🇩🇪 netcup-AS
PTRthird-dns.netcup.net
A188.68.63.68🇩🇪 netcup-AS
PTRthird-dns.netcup.net
MXmail.a5u.de ⭐
A46.38.249.147🇩🇪 netcup-AS
PTRmxf993.netcup.net
MXmxf993.netcup.net(50)
A2a03:4000:0:279:5870:38ff:fe02:3253🇩🇪 netcup-AS
PTRmxf993.netcup.net
A46.38.249.147🇩🇪 netcup-AS
PTRmxf993.netcup.net
TXTv=spf1 mx a include:_spf.webhosting.systems ~all
SOAroot-dns.netcup.netdnsadmin@netcup.net 2021-10-15 #15

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=1771291602

Up

mail.a5u.de

Same first word

a5u.de

Similar names

ua5.cn
ua5.co
5ua.com
ua5.org
u5a.us
ua5.land
u5a.ws
ua5.net
u5a.de
au5.net
5au.de
au5.ru
5au.com.au
5au.cn

DNS History

12 records (7 active, 5 former)

20162017201820192020202120222023202420252026NSroot-dns.netcup.netsecond-dns.netcup.netthird-dns.netcup.netns1.sedoparking.comns2.sedoparking.comMXmail.a5u.demxf993.netcup.netlocalhostmail.nickstel.comA2a03:4000:30:c203::15:41046.38.249.14572.52.4.91
○NSns1.sedoparking.com2015-05-25 → 2016-10-24 · 4 obs
● 2015-05-25 02:26:56
● 2016-10-24 10:45:54
○ 2026-02-17 13:51:42
○ 2026-02-22 04:53:24
○NSns2.sedoparking.com2015-05-25 → 2016-10-24 · 4 obs
● 2015-05-25 02:26:56
● 2016-10-24 10:45:54
○ 2026-02-17 13:51:42
○ 2026-02-22 04:53:24
●NSroot-dns.netcup.net2026-02-17 → 2026-02-22 · 3 obs
○ 2016-10-24 10:45:54
● 2026-02-17 13:51:42
● 2026-02-22 04:53:24
●NSsecond-dns.netcup.net2026-02-17 → 2026-02-22 · 3 obs
○ 2016-10-24 10:45:54
● 2026-02-17 13:51:42
● 2026-02-22 04:53:24
●NSthird-dns.netcup.net2026-02-17 → 2026-02-22 · 3 obs
○ 2016-10-24 10:45:54
● 2026-02-17 13:51:42
● 2026-02-22 04:53:24
○MXlocalhost2016-09-07 → 2016-10-24 · 5 obs
○ 2016-05-28 07:22:12
● 2016-09-07 10:13:58
● 2016-10-24 10:45:54
○ 2026-02-17 13:51:42
○ 2026-02-22 04:53:24
●MXmail.a5u.de2026-02-17 → 2026-02-22 · 3 obs
○ 2016-10-24 10:45:54
● 2026-02-17 13:51:42
● 2026-02-22 04:53:24
○MXmail.nickstel.com2015-05-25 → 2016-05-28 · 4 obs
● 2015-05-25 02:26:56
● 2016-05-28 07:22:12
○ 2016-09-07 10:13:58
○ 2026-02-22 04:53:24
●MXmxf993.netcup.net2026-02-17 → 2026-02-22 · 3 obs
○ 2016-10-24 10:45:54
● 2026-02-17 13:51:42
● 2026-02-22 04:53:24
●A2a03:4000:30:c203::15:4102026-02-17 → 2026-02-22 · 3 obs
○ 2016-10-24 10:45:54
● 2026-02-17 13:51:42
● 2026-02-22 04:53:24
●A46.38.249.1452026-02-17 → 2026-02-22 · 3 obs
○ 2016-10-24 10:45:54
● 2026-02-17 13:51:42
● 2026-02-22 04:53:24
○A72.52.4.912015-05-25 → 2016-10-24 · 4 obs
● 2015-05-25 02:26:56
● 2016-10-24 10:45:54
○ 2026-02-17 13:51:42
○ 2026-02-22 04:53:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
a5u.deroot-dns.netcup.net, second-dns.netcup.net, third-dns.netcup.net-

✅ Authoritative Response

Server: 188.68.63.68

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for a5u.de (unsigned zone)

⏱️ Timing

Total: 238ms | Queries: -

📄 Records

TypeCountSample Data
A146.38.249.145
AAAA12a03:4000:30:c203::15:410
NS3second-dns.netcup.net, third-dns.netcup.net...
MX2mxf993.netcup.net (pri: 50), mail.a5u.de (pri: 10)
TXT1v=spf1 mx a include:_spf.webhosting.syst
SOA1root-dns.netcup.net dnsadmin.netcup.net

AI analysis

The parent of mail.a5u.de is a5u.de.

a5u.de points to two IP numbers: 2a03:4000:30:c203::15:410 and 46.38.249.145.

Other host names such as theater-hessen.de, kochmalwas.de, aixcase.de, oberbauerschafter-sommer.de and edugroup.de share IPs with a5u.de.

a5u.de is delegated to three name servers: root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.

a5u.de at least partially shares name servers with other domains, for example schults.de, optikercity.de, forum-maenner.de, pacmess.de and mkey.solutions.

Host names with two IP numbers:

root-dns.netcup.net points to 2a03:4000:0:1::e1e1 and 46.38.225.225

second-dns.netcup.net points to 2a03:4000:2:24b::c7c7 and 37.221.199.199

third-dns.netcup.net points to 2a03:4001:0:106::3f44 and 188.68.63.68

Two mail servers handle a5u.de: mail.a5u.de and mxf993.netcup.net.

a5u.de shares at least partially some mail servers with other domains, for instance bad-rabbitz.de, knepe.de, ds-promotion.de, fuchs-tuning.de and radiopass.de.

these mail servers are commonly used with mail.knepe.de.

Host names with two IPs:

mxf993.netcup.net resolves to 2a03:4000:0:279:5870:38ff:fe02:3253 and 46.38.249.147.

Host names with one IP:

mail.a5u.de resolves to 46.38.249.147.

Hosts resolving to 46.38.249.147: mxf993.netcup.net and mail.a5u.de.