derdualstudent.de - robtex.com

derdualstudent.de

DNSSEC⚠️ Not signed
A2a01:4f8:d0a:6662::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRdedi5664.your-server.de
A116.202.77.29🇩🇪 Hetzner116.202.0.0/16 HETZNER-DC
NSns1.first-ns.de ⭐
A2a01:4f8:0:a101::a:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRns1.first-ns.de
A213.239.242.238🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2
PTRns1.first-ns.de
NSrobotns2.second-ns.de
A2a01:4f8:0:1::5ddc:2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRrobotns2.second-ns.de
A213.133.100.103🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1
PTRrobotns2.second-ns.de
NSrobotns3.second-ns.com
A2001:67c:192c::add:a3🇩🇪 NORIS-NETWORK2001:67c:192c::/48
PTRrobotns3.second-ns.com
A193.47.99.3🇩🇪 NORIS-NETWORK193.47.99.0/24
PTRrobotns3.second-ns.com
MXmail.derdualstudent.de ⭐
A116.202.77.29🇩🇪 Hetzner116.202.0.0/16 HETZNER-DC
PTRdedi5664.your-server.de
TXTv=spf1 a mx ~all
SOAns1.first-ns.dedns@hetzner.com 2026-04-14 #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=1776990517
WOT: SAFE (67/100)

Subdomains

www.derdualstudent.de
mail.derdualstudent.de

Same first word

derdualstudent.de

DNS History

10 records (6 active, 4 former)

20162017201820192020202120222023202420252026NSns1.first-ns.derobotns2.second-ns.derobotns3.second-ns.comcns1.alfahosting.infocns2.alfahosting.infocns3.alfahosting.infoMXmail.derdualstudent.deA116.202.77.292a01:4f8:d0a:6662::2109.237.139.211
○NScns1.alfahosting.info2015-05-05 → 2016-08-10 · 4 obs
● 2015-05-05 18:23:26
● 2016-08-10 00:01:48
○ 2026-02-21 04:09:20
○ 2026-04-24 00:29:48
○NScns2.alfahosting.info2015-05-05 → 2016-08-10 · 4 obs
● 2015-05-05 18:23:26
● 2016-08-10 00:01:48
○ 2026-02-21 04:09:20
○ 2026-04-24 00:29:48
○NScns3.alfahosting.info2015-05-05 → 2016-08-10 · 4 obs
● 2015-05-05 18:23:26
● 2016-08-10 00:01:48
○ 2026-02-21 04:09:20
○ 2026-04-24 00:29:48
●NSns1.first-ns.de2026-02-21 → 2026-04-24 · 3 obs
○ 2016-08-10 00:01:48
● 2026-02-21 04:09:20
● 2026-04-24 00:29:48
●NSrobotns2.second-ns.de2026-02-21 → 2026-04-24 · 3 obs
○ 2016-08-10 00:01:48
● 2026-02-21 04:09:20
● 2026-04-24 00:29:48
●NSrobotns3.second-ns.com2026-02-21 → 2026-04-24 · 3 obs
○ 2016-08-10 00:01:48
● 2026-02-21 04:09:20
● 2026-04-24 00:29:48
●MXmail.derdualstudent.de2015-05-05 → 2026-04-24 · 2 obs
● 2015-05-05 18:23:26
● 2026-04-24 00:29:48
○A109.237.139.2112015-05-05 → 2016-08-10 · 4 obs
● 2015-05-05 18:23:26
● 2016-08-10 00:01:48
○ 2026-02-21 04:09:20
○ 2026-04-24 00:29:48
●A116.202.77.292026-02-21 → 2026-04-24 · 3 obs
○ 2016-08-10 00:01:48
● 2026-02-21 04:09:20
● 2026-04-24 00:29:48
●A2a01:4f8:d0a:6662::22026-02-21 → 2026-04-24 · 3 obs
○ 2016-08-10 00:01:48
● 2026-02-21 04:09:20
● 2026-04-24 00:29:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
derdualstudent.dens1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com-

✅ Authoritative Response

Server:213.133.100.103

NS records: ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for derdualstudent.de (unsigned zone)

⏱️ Timing

Total: 2753ms | Queries: -

📄 Records

TypeCountSample Data
A1116.202.77.29
AAAA12a01:4f8:d0a:6662::2
NS3robotns3.second-ns.com, ns1.first-ns.de...
MX1mail.derdualstudent.de (pri: 10)
TXT1v=spf1 a mx ~all
SOA1ns1.first-ns.de dns.hetzner.com

Analysis

Hierarchy

derdualstudent.de is a parent of www.derdualstudent.de and mail.derdualstudent.de.

IP Addresses

derdualstudent.de points to two IPs: 2a01:4f8:d0a:6662::2 and 116.202.77.29.

Other host names, for instance www.uhrzeit-new-york.de, traumkoffer.de, cdn.solidsales.de, mail.revando.de and tg-studio.de share IP numbers with derdualstudent.de.

Name Servers

derdualstudent.de is delegated to name servers robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.

derdualstudent.de at least partially shares name servers with other domains such as recetasprivadas.net, ibocs.de, zkit.de, coreliquid.com and panafrikanismusforum.net.

Host names with two IP numbers:

robotns3.second-ns.com points to 2001:67c:192c::add:a3 and 193.47.99.3.

ns1.first-ns.de points to 2a01:4f8:0:a101::a:1 and 213.239.242.238.

robotns2.second-ns.de points to 2a01:4f8:0:1::5ddc:2 and 213.133.100.103.

Mail Servers

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

mail.derdualstudent.de points to one IP number: 116.202.77.29.