a1u.de - robtex.com

a1u.de

DNSSEC⚠️ Not signed
A82.165.162.158🇩🇪 IONOS-AS82.165.0.0/16 IONOS-PA-4
PTRs05.hosting-kl.de
NSleonard.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c36🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleonard.ns.cloudflare.com
A2803:f800:50::6ca2:c336🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRleonard.ns.cloudflare.com
A2a06:98c1:50::ac40:2336🇺🇸 Cloudflare2a06:98c1:50::/45
PTRleonard.ns.cloudflare.com
A108.162.195.54🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleonard.ns.cloudflare.com
A162.159.44.54Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleonard.ns.cloudflare.com
A172.64.35.54🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleonard.ns.cloudflare.com
NSreza.ns.cloudflare.com
A2606:4700:50::adf5:3ad9🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRreza.ns.cloudflare.com
A2803:f800:50::6ca2:c0d9🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRreza.ns.cloudflare.com
A2a06:98c1:50::ac40:20d9🇺🇸 Cloudflare2a06:98c1:50::/45
PTRreza.ns.cloudflare.com
A108.162.192.217🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRreza.ns.cloudflare.com
A172.64.32.217🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRreza.ns.cloudflare.com
A173.245.58.217🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRreza.ns.cloudflare.com
MXmail.a1u.de ⭐
A82.165.162.158🇩🇪 IONOS-AS82.165.0.0/16 IONOS-PA-4
PTRs05.hosting-kl.de
TXTv=spf1 +a +mx -all
SOAleonard.ns.cloudflare.comdns@cloudflare.com serial=2397350637

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=1774397058

Subdomains

mail.a1u.de

Same first word

a1u.cc
a1u.de
a1u.com
a1u.ru

Similar names

1au.co
1ua.in
u1a.de
au1.de
ua1.ru
ua1.biz
au1.com.au
ua1.sytes.net
au1.ru
1ua.info
1ua.net
1au.net
1au.us
1au.org
u1a.jp
u1a.com
1ua.cc
1au.com
1ua.top
ua1.se
1ua.ru
au1.co
au1.com
ua1.eu
1au.biz
au1.net
1ua.com
u1a.co.uk
ua1.org
ua1.de
1ua.com.ua
ua1.info
au1.co.uk
au1.ch
ua1.cat
1au.de
ua1.com
ua1.com.ua
1ua.university
1ua.de
au1.org

DNS History

8 records (4 active, 4 former)

20162017201820192020202120222023202420252026NSleonard.ns.cloudflare.comreza.ns.cloudflare.comcns1.alfahosting.infocns2.alfahosting.infocns3.alfahosting.infoMXmail.a1u.deA82.165.162.158109.237.134.24
○NScns1.alfahosting.info2015-06-01 → 2016-11-29 · 4 obs
● 2015-06-01 11:51:28
● 2016-11-29 13:39:00
○ 2017-06-03 07:44:46
○ 2026-03-25 00:22:02
○NScns2.alfahosting.info2015-06-01 → 2016-11-29 · 4 obs
● 2015-06-01 11:51:28
● 2016-11-29 13:39:00
○ 2017-06-03 07:44:46
○ 2026-03-25 00:22:02
○NScns3.alfahosting.info2015-06-01 → 2016-11-29 · 4 obs
● 2015-06-01 11:51:28
● 2016-11-29 13:39:00
○ 2017-06-03 07:44:46
○ 2026-03-25 00:22:02
●NSleonard.ns.cloudflare.com2026-02-17 → 2026-03-25 · 3 obs
○ 2017-06-03 07:44:46
● 2026-02-17 08:43:36
● 2026-03-25 00:22:02
●NSreza.ns.cloudflare.com2026-02-17 → 2026-03-25 · 3 obs
○ 2017-06-03 07:44:46
● 2026-02-17 08:43:36
● 2026-03-25 00:22:02
●MXmail.a1u.de2015-06-01 → 2026-03-25 · 5 obs
● 2015-06-01 11:51:28
● 2016-11-29 13:39:00
○ 2017-06-03 07:44:46
● 2026-02-17 08:43:36
● 2026-03-25 00:22:02
○A109.237.134.242015-06-01 → 2016-11-29 · 4 obs
● 2015-06-01 11:51:28
● 2016-11-29 13:39:00
○ 2017-06-03 07:44:46
○ 2026-03-25 00:22:02
●A82.165.162.1582026-02-17 → 2026-03-25 · 3 obs
○ 2017-06-03 07:44:46
● 2026-02-17 08:43:36
● 2026-03-25 00:22:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dez.nic.de, f.nic.de, a.nic.de-
a1u.dereza.ns.cloudflare.com, leonard.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.192.217

NS records: reza.ns.cloudflare.com, leonard.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for a1u.de (unsigned zone)

⏱️ Timing

Total: 774ms | Queries: -

📄 Records

TypeCountSample Data
A182.165.162.158
NS2leonard.ns.cloudflare.com, reza.ns.cloudflare.com
MX1mail.a1u.de (pri: 10)
TXT1v=spf1 +a +mx -all
SOA1leonard.ns.cloudflare.com dns.cloudflare

Analysis

Hierarchy

The parent of mail.a1u.de is a1u.de.

IP Addresses

a1u.de points to an IP address: 82.165.162.158.

other host names include hosting-kl.de, it-sicherheit-kl.de, s05.hosting-kl.de, mail.altwiese.de and klip-asca.eu; they share IP numbers with a1u.de.

Name Servers

Two name servers leonard.ns.cloudflare.com and reza.ns.cloudflare.com handle the delegation for a1u.de.

a1u.de shares the same name server setup as other domains, for instance klip-asca.eu, w3ww.de, servotion.com, x800.de and onceforalldelivered.com.

a1u.de at least partially shares name servers with other domains, for instance pecol.pt, makingspace.co, qxlianao.com, 95365.org and kulisbetguncel2026.vip.

These name servers are commonly used alongside anton.ns.cloudflare.com.

Six IP addresses per host:

leonard.ns.cloudflare.com points to 2606:4700:58::a29f:2c36, 2803:f800:50::6ca2:c336, 2a06:98c1:50::ac40:2336, 108.162.195.54, 162.159.44.54 and 172.64.35.54; reza.ns.cloudflare.com points to 2606:4700:50::adf5:3ad9, 2803:f800:50::6ca2:c0d9, 2a06:98c1:50::ac40:20d9, 108.162.192.217, 172.64.32.217 and 173.245.58.217

Mail Servers

a1u.de is handled by a single mail server, mail.a1u.de.

The host name mail.a1u.de points to IP 82.165.162.158.