sem4u.de - robtex.com

sem4u.de

DNSSEC⚠️ Not signed
A2a01:4f8:d0a:6552::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRdedi5369.your-server.de
A159.69.224.62🇩🇪 Hetzner159.69.0.0/16 HETZNER-DC
NSns1.your-server.de ⭐
A2a01:4f8:0:1::5ddc:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRns1.your-server.de
A213.133.100.102🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1
PTRns1.your-server.de
NSns.second-ns.com
A2a01:4f8:0:a101::b:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRns.second-ns.com
A213.239.204.242🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2
PTRns.second-ns.com
NSns3.second-ns.de
A2001:67c:192c::add:b3🇩🇪 NORIS-NETWORK2001:67c:192c::/48
PTRns3.second-ns.de
A193.47.99.4🇩🇪 NORIS-NETWORK193.47.99.0/24
PTRns3.second-ns.de
MXmail.sem4u.de ⭐
A2a01:4f8:d0a:6552::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRdedi5369.your-server.de
A159.69.224.62🇩🇪 Hetzner159.69.0.0/16 HETZNER-DC
PTRdedi5369.your-server.de
TXTv=spf1 +a +mx ?all
SOAns1.your-server.depostmaster@your-server.de 2026-01-08 #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=1773553752

Subdomains

mail.sem4u.de

Same first word

sem4u.de
sem4u.com
sem4u.at
sem4u.net

Similar names

ems4u.de
muse4.com
us4me.com
ems4u.us
sme4u.com
ems4u.com
su4me.com
mse4u.com
4muse.com
4muse.ru

DNS History

12 records (6 active, 6 former)

20162017201820192020202120222023202420252026NSns.second-ns.comns1.your-server.dens3.second-ns.dens7.schlund.dens8.schlund.deMXmail.sem4u.demx00.schlund.demx01.schlund.deA159.69.224.622a01:4f8:d0a:6552::2217.160.231.13782.165.90.154
●NSns.second-ns.com2020-04-06 → 2026-03-22 · 3 obs
○ 2016-07-05 05:44:12
● 2020-04-06 20:20:46
● 2026-03-22 23:14:08
●NSns1.your-server.de2020-04-06 → 2026-03-22 · 3 obs
○ 2016-07-05 05:44:12
● 2020-04-06 20:20:46
● 2026-03-22 23:14:08
●NSns3.second-ns.de2020-04-06 → 2026-03-22 · 3 obs
○ 2016-07-05 05:44:12
● 2020-04-06 20:20:46
● 2026-03-22 23:14:08
○NSns7.schlund.de2015-05-11 → 2016-07-05 · 4 obs
● 2015-05-11 22:57:20
● 2016-07-05 05:44:12
○ 2020-04-06 20:20:46
○ 2026-03-22 23:14:08
○NSns8.schlund.de2015-05-11 → 2016-07-05 · 4 obs
● 2015-05-11 22:57:20
● 2016-07-05 05:44:12
○ 2020-04-06 20:20:46
○ 2026-03-22 23:14:08
●MXmail.sem4u.de2020-04-06 → 2026-03-22 · 3 obs
○ 2016-07-05 05:44:12
● 2020-04-06 20:20:46
● 2026-03-22 23:14:08
○MXmx00.schlund.de2015-05-11 → 2016-07-05 · 4 obs
● 2015-05-11 22:57:20
● 2016-07-05 05:44:12
○ 2020-04-06 20:20:46
○ 2026-03-22 23:14:08
○MXmx01.schlund.de2015-05-11 → 2016-07-05 · 4 obs
● 2015-05-11 22:57:20
● 2016-07-05 05:44:12
○ 2020-04-06 20:20:46
○ 2026-03-22 23:14:08
●A159.69.224.622020-04-06 → 2026-03-22 · 3 obs
○ 2016-07-05 05:44:12
● 2020-04-06 20:20:46
● 2026-03-22 23:14:08
○A217.160.231.1372016-05-09 → 2016-07-05 · 5 obs
○ 2016-01-23 22:37:40
● 2016-05-09 09:42:00
● 2016-07-05 05:44:12
○ 2020-04-06 20:20:46
○ 2026-03-22 23:14:08
●A2a01:4f8:d0a:6552::22020-04-06 → 2026-03-22 · 3 obs
○ 2016-07-05 05:44:12
● 2020-04-06 20:20:46
● 2026-03-22 23:14:08
○A82.165.90.1542015-05-11 → 2016-01-23 · 4 obs
● 2015-05-11 22:57:20
● 2016-01-23 22:37:40
○ 2016-05-09 09:42:00
○ 2026-03-22 23:14:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
sem4u.dens.second-ns.com, ns1.your-server.de, ns3.second-ns.de4 records

✅ Authoritative Response

Server:213.239.204.242

NS records: ns.second-ns.com, ns1.your-server.de, ns3.second-ns.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sem4u.de (unsigned zone)

⏱️ Timing

Total: 668ms | Queries: -

📄 Records

TypeCountSample Data
A1159.69.224.62
AAAA12a01:4f8:d0a:6552::2
NS3ns1.your-server.de, ns3.second-ns.de...
MX1mail.sem4u.de (pri: 10)
TXT1v=spf1 +a +mx ?all
SOA1ns1.your-server.de postmaster.your-serve

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns3.second-ns.de, ns1.your-server.de, ns3.second-ns.de...)

Analysis

Hierarchy

The parent of mail.sem4u.de is sem4u.de.

IP Addresses

sem4u.de points to two IP numbers: 2a01:4f8:d0a:6552::2 and 159.69.224.62.

Other host names such as familienrecht-mietrecht.de, altoele-schultz.de, lachende-lanxessarena.com, www.ptkoeln.de and www.koelschagentur.de share IPs with sem4u.de.

Name Servers

sem4u.de is delegated to three name servers: ns.second-ns.com, ns3.second-ns.de and ns1.your-server.de.

sem4u.de at least partially shares name servers with other domains, for instance 7.217.95.in-addr.arpa, c-one.fr, weborbis.com, qualifiber.de and scuderia-obergass.de.

These name servers are commonly used together with robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.

Host ns.second-ns.com points to 2a01:4f8:0:a101::b:1 and 213.239.204.242; Host ns3.second-ns.de points to 2001:67c:192c::add:b3 and 193.47.99.4; Host ns1.your-server.de points to 2a01:4f8:0:1::5ddc:1 and 213.133.100.102.

Mail Servers

sem4u.de is handled by a single mail server, mail.sem4u.de.

mail.sem4u.de points to two IPs: 2a01:4f8:d0a:6552::2 and 159.69.224.62.