4students.de - robtex.com

4students.de

DNSSEC⚠️ Not signed
A2001:8d8:100f:f000::200🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910
PTR2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com
A217.160.0.113🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3
NSns1040.ui-dns.com ⭐
A2001:8d8:fe:53:0:d9a0:5228:100IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
A217.160.82.40IONOS-AS217.160.80.0/22 AS8560 anycast more specific
NSns1040.ui-dns.biz
A2001:8d8:fe:53:0:d9a0:5128:100IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
A217.160.81.40IONOS-AS217.160.80.0/22 AS8560 anycast more specific
NSns1040.ui-dns.de
A2001:8d8:fe:53:0:d9a0:5028:100
A217.160.80.40
NSns1040.ui-dns.org
A2001:8d8:fe:53:0:d9a0:5328:100
A217.160.83.40
MXmx00.ionos.de ⭐
A212.227.15.41🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2
PTRmx00.kundenserver.de
MXmx01.ionos.de ⭐
A217.72.192.67🇩🇪 IONOS-AS217.72.192.0/20 Web.de
PTRmx01.kundenserver.de
TXTv=spf1 include:_spf-eu.ionos.com ~all
SOAns1040.ui-dns.comhostmaster@1und1.de 2016-04-19 #5

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=1778693952
WOT: SAFE (63/100)

Subdomains

www.4students.de

Same first word

4students.cz
4students.me
4students.pl
4students.us
4students.com

Similar names

students4.com

DNS History

14 records (8 active, 6 former)

20162017201820192020202120222023202420252026NSns1040.ui-dns.bizns1040.ui-dns.comns1040.ui-dns.dens1040.ui-dns.orgns43.1und1.dens44.1und1.deMXmx00.ionos.demx01.ionos.demx00.kundenserver.demx01.kundenserver.deA2001:8d8:100f:f000::200217.160.0.113217.160.231.16182.165.98.52
●NSns1040.ui-dns.biz2026-05-13 → 2026-05-13 · 3 obs
○ 2016-12-24 18:41:52
● 2026-05-13 17:45:26
● 2026-05-13 17:45:28
●NSns1040.ui-dns.com2026-05-13 → 2026-05-13 · 3 obs
○ 2016-12-24 18:41:52
● 2026-05-13 17:45:26
● 2026-05-13 17:45:28
●NSns1040.ui-dns.de2026-05-13 → 2026-05-13 · 3 obs
○ 2016-12-24 18:41:52
● 2026-05-13 17:45:26
● 2026-05-13 17:45:28
●NSns1040.ui-dns.org2026-05-13 → 2026-05-13 · 3 obs
○ 2016-12-24 18:41:52
● 2026-05-13 17:45:26
● 2026-05-13 17:45:28
○NSns43.1und1.de2015-05-07 → 2016-12-24 · 4 obs
● 2015-05-07 00:30:42
● 2016-12-24 18:41:52
○ 2026-05-13 17:45:26
○ 2026-05-13 17:45:28
○NSns44.1und1.de2015-05-07 → 2016-12-24 · 4 obs
● 2015-05-07 00:30:42
● 2016-12-24 18:41:52
○ 2026-05-13 17:45:26
○ 2026-05-13 17:45:28
●MXmx00.ionos.de2026-05-13 → 2026-05-13 · 3 obs
○ 2016-12-24 18:41:52
● 2026-05-13 17:45:26
● 2026-05-13 17:45:28
○MXmx00.kundenserver.de2015-05-07 → 2016-12-24 · 4 obs
● 2015-05-07 00:30:42
● 2016-12-24 18:41:52
○ 2026-05-13 17:45:26
○ 2026-05-13 17:45:28
●MXmx01.ionos.de2026-05-13 → 2026-05-13 · 3 obs
○ 2016-12-24 18:41:52
● 2026-05-13 17:45:26
● 2026-05-13 17:45:28
○MXmx01.kundenserver.de2015-05-07 → 2016-12-24 · 4 obs
● 2015-05-07 00:30:42
● 2016-12-24 18:41:52
○ 2026-05-13 17:45:26
○ 2026-05-13 17:45:28
●A2001:8d8:100f:f000::2002026-05-13 → 2026-05-13 · 3 obs
○ 2016-12-24 18:41:52
● 2026-05-13 17:45:26
● 2026-05-13 17:45:28
●A217.160.0.1132026-05-13 → 2026-05-13 · 3 obs
○ 2016-12-24 18:41:52
● 2026-05-13 17:45:26
● 2026-05-13 17:45:28
○A217.160.231.1612016-04-21 → 2016-12-24 · 5 obs
○ 2015-12-22 03:26:48
● 2016-04-21 05:56:00
● 2016-12-24 18:41:52
○ 2026-05-13 17:45:26
○ 2026-05-13 17:45:28
○A82.165.98.522015-05-07 → 2015-12-22 · 4 obs
● 2015-05-07 00:30:42
● 2015-12-22 03:26:48
○ 2016-04-21 05:56:00
○ 2026-05-13 17:45:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
4students.dens1040.ui-dns.biz, ns1040.ui-dns.com, ns1040.ui-dns.org, ns1040.ui-dns.de-

✅ Authoritative Response

Server:217.160.81.40

NS records: ns1040.ui-dns.biz, ns1040.ui-dns.com, ns1040.ui-dns.org, ns1040.ui-dns.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 4students.de (unsigned zone)

⏱️ Timing

Total: 2408ms | Queries: -

📄 Records

TypeCountSample Data
A1217.160.0.113
AAAA12001:8d8:100f:f000::200
NS4ns1040.ui-dns.com, ns1040.ui-dns.biz...
MX2mx01.ionos.de (pri: 10), mx00.ionos.de (pri: 10)
TXT1v=spf1 include:_spf-eu.ionos.com ~all
SOA1ns1040.ui-dns.com hostmaster.1und1.de

Analysis

Hierarchy

4students.de is a parent of www.4students.de.

IP Addresses

4students.de points to two IP numbers: 2001:8d8:100f:f000::200 and 217.160.0.113.

Name Servers

4students.de is delegated to four name servers: ns1040.ui-dns.biz, ns1040.ui-dns.com, ns1040.ui-dns.de and ns1040.ui-dns.org.

Host names with two IP numbers:

ns1040.ui-dns.biz points to: 2001:8d8:fe:53:0:d9a0:5128:100 and 217.160.81.40.

ns1040.ui-dns.com points to: 2001:8d8:fe:53:0:d9a0:5228:100 and 217.160.82.40.

ns1040.ui-dns.de points to: 2001:8d8:fe:53:0:d9a0:5028:100 and 217.160.80.40.

ns1040.ui-dns.org points to: 2001:8d8:fe:53:0:d9a0:5328:100 and 217.160.83.40.

Mail Servers

4students.de is handled by two mail servers: mx00.ionos.de and mx01.ionos.de.

Host names with one IP number: mx00.ionos.de points to 212.227.15.41; mx01.ionos.de points to 217.72.192.67.