fns-os.de - robtex.com

fns-os.de

DNSSEC⚠️ Not signed
A91.249.231.95🇩🇪 EWETEL91.248.0.0/15 DE-EWETEL-20120223
PTRleasedline-static-091-249-231-095.ewe-ip-backbone.de
NSns1.iserv.eu ⭐
A2a01:4f8:c01f:42::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRns1.iserv.eu
A116.202.2.219🇩🇪 Hetzner116.202.0.0/16 HETZNER-DC
PTRns1.iserv.eu
NSns2.iserv.eu
A2a03:4000:20:19b::1🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH
PTRns2.iserv.eu
A91.204.44.133🇩🇪 netcup-AS91.204.44.0/22
PTRns2.iserv.eu
NSns3.iserv.eu
A2a01:4f8:1c0c:8111::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRns3.iserv.eu
A116.203.7.41🇩🇪 Hetzner116.203.0.0/16 HETZNER-DC
PTRns3.iserv.eu
NSns4.iserv.eu
A2a03:4000:20:19e::1🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH
PTRns4.iserv.eu
A188.68.45.203🇩🇪 netcup-AS188.68.32.0/20 NETCUP-GMBH
PTRns4.iserv.eu
MXfns-os.de ⭐
A91.249.231.95🇩🇪 EWETEL91.248.0.0/15 DE-EWETEL-20120223
PTRleasedline-static-091-249-231-095.ewe-ip-backbone.de
MXoffline.iserv.eu(50)
A2a01:4f8:c2c:4863::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
A159.69.47.32🇩🇪 Hetzner159.69.0.0/16 HETZNER-DC
PTRstatic.32.47.69.159.clients.your-server.de
TXTv=spf1 a mx a:relay1.iserv.eu a:relay2.iserv.eu a:relay3.iserv.eu a:relaybs.i...
SOAns1.iserv.euhostmaster@iserv.eu serial=355997593

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=1776211591

MX for

fns-os.de

Subdomains

www.fns-os.de

Same first word

fns-os.de

DNS History

20 records (7 active, 13 former)

20162017201820192020202120222023202420252026NSns1.iserv.euns2.iserv.euns3.iserv.euns4.iserv.euMXfns-os.deoffline.iserv.euA91.249.231.95217.254.193.124217.254.194.115217.254.195.70217.254.196.20217.254.206.94217.254.210.112217.254.216.45217.254.228.231217.254.241.12217.254.245.119217.254.252.6093.228.254.22793.228.255.220
●NSns1.iserv.eu2015-07-21 → 2026-04-15 · 2 obs
● 2015-07-21 23:37:26
● 2026-04-15 00:09:40
●NSns2.iserv.eu2015-07-21 → 2026-04-15 · 2 obs
● 2015-07-21 23:37:26
● 2026-04-15 00:09:40
●NSns3.iserv.eu2017-06-12 → 2026-04-15 · 3 obs
○ 2015-07-21 23:37:26
● 2017-06-12 13:33:26
● 2026-04-15 00:09:40
●NSns4.iserv.eu2026-03-25 → 2026-04-15 · 3 obs
○ 2017-06-12 13:33:26
● 2026-03-25 14:13:02
● 2026-04-15 00:09:40
●MXfns-os.de2015-07-21 → 2026-04-15 · 2 obs
● 2015-07-21 23:37:26
● 2026-04-15 00:09:40
●MXoffline.iserv.eu2015-07-21 → 2026-04-15 · 2 obs
● 2015-07-21 23:37:26
● 2026-04-15 00:09:40
○A217.254.193.1242016-05-28 → 2016-05-28 · 4 obs
○ 2016-05-07 11:41:14
● 2016-05-28 07:25:44
○ 2016-07-30 10:24:16
○ 2026-04-15 00:09:40
○A217.254.194.1152015-10-15 → 2015-10-15 · 4 obs
○ 2015-09-07 07:02:54
● 2015-10-15 15:46:46
○ 2015-10-16 19:09:10
○ 2026-04-15 00:09:40
○A217.254.195.702015-12-18 → 2015-12-18 · 4 obs
○ 2015-10-16 19:09:10
● 2015-12-18 18:01:54
○ 2015-12-22 01:33:20
○ 2026-04-15 00:09:40
○A217.254.196.202015-10-16 → 2015-10-16 · 4 obs
○ 2015-10-15 15:46:46
● 2015-10-16 19:09:10
○ 2015-12-18 18:01:54
○ 2026-04-15 00:09:40
○A217.254.206.942016-02-22 → 2016-02-22 · 4 obs
○ 2016-01-15 14:59:24
● 2016-02-22 18:10:14
○ 2016-05-07 11:41:14
○ 2026-04-15 00:09:40
○A217.254.210.1122016-01-15 → 2016-01-15 · 4 obs
○ 2015-12-22 01:33:20
● 2016-01-15 14:59:24
○ 2016-02-22 18:10:14
○ 2026-04-15 00:09:40
○A217.254.216.452016-07-30 → 2016-07-30 · 4 obs
○ 2016-05-28 07:25:44
● 2016-07-30 10:24:16
○ 2017-06-12 13:33:26
○ 2026-04-15 00:09:40
○A217.254.228.2312015-09-07 → 2015-09-07 · 4 obs
○ 2015-07-21 23:37:26
● 2015-09-07 07:02:54
○ 2015-10-15 15:46:46
○ 2026-04-15 00:09:40
○A217.254.241.122016-05-07 → 2016-05-07 · 4 obs
○ 2016-02-22 18:10:14
● 2016-05-07 11:41:14
○ 2016-05-28 07:25:44
○ 2026-04-15 00:09:40
○A217.254.245.1192015-12-22 → 2015-12-22 · 4 obs
○ 2015-12-18 18:01:54
● 2015-12-22 01:33:20
○ 2016-01-15 14:59:24
○ 2026-04-15 00:09:40
○A217.254.252.602015-07-21 → 2015-07-21 · 3 obs
● 2015-07-21 23:37:26
○ 2015-09-07 07:02:54
○ 2026-04-15 00:09:40
●A91.249.231.952026-03-25 → 2026-04-15 · 3 obs
○ 2018-07-09 17:45:20
● 2026-03-25 14:13:02
● 2026-04-15 00:09:40
○A93.228.254.2272017-06-12 → 2017-06-12 · 4 obs
○ 2016-07-30 10:24:16
● 2017-06-12 13:33:26
○ 2018-07-09 17:45:20
○ 2026-04-15 00:09:40
○A93.228.255.2202018-07-09 → 2018-07-09 · 4 obs
○ 2017-06-12 13:33:26
● 2018-07-09 17:45:20
○ 2026-03-25 14:13:02
○ 2026-04-15 00:09:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dez.nic.de, a.nic.de, f.nic.de-
fns-os.dens1.iserv.eu, ns2.iserv.eu, ns3.iserv.eu, ns4.iserv.eu-

✅ Authoritative Response

Server:116.203.7.41

NS records: ns1.iserv.eu, ns2.iserv.eu, ns3.iserv.eu, ns4.iserv.eu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for fns-os.de (unsigned zone)

⏱️ Timing

Total: 1593ms | Queries: -

📄 Records

TypeCountSample Data
A191.249.231.95
NS4ns3.iserv.eu, ns1.iserv.eu...
MX2offline.iserv.eu (pri: 50), fns-os.de (pri: 10)
TXT1v=spf1 a mx a:relay1.iserv.eu a:relay2.i
SOA1ns1.iserv.eu hostmaster.iserv.eu

Analysis

Hierarchy

www.fns-os.de is a child of fns-os.de.

Mail Server Role

fns-os.de serves as the mail server for fns-os.de.

offline.iserv.eu is commonly used as a mail server alongside fns-os.de.

IP Addresses

fns-os.de resolves to one IP number: 91.249.231.95.

Other host names, for example leasedline-static-091-249-231-095.ewe-ip-backbone.de, share IP numbers with fns-os.de.

Name Servers

fns-os.de delegates to four name servers: ns1.iserv.eu, ns2.iserv.eu, ns3.iserv.eu and ns4.iserv.eu.

fns-os.de at least partially shares name servers with other domains, including oberschule-rosengarten.de, glanz.net, sekundarschule-soest.eu, reu-nt.de and gymbsb.net.

Host names with two IP numbers: ns1.iserv.eu points to 2a01:4f8:c01f:42::1 and 116.202.2.219; ns2.iserv.eu points to 2a03:4000:20:19b::1 and 91.204.44.133; ns3.iserv.eu points to 2a01:4f8:1c0c:8111::1 and 116.203.7.41; ns4.iserv.eu points to 2a03:4000:20:19e::1 and 188.68.45.203.

Mail Servers

fns-os.de is handled by two mail servers: fns-os.de and offline.iserv.eu.

fns-os.de shares at least some mail servers with other domains, for example es-pahlen.de, bshp.de, budenbergschule.de, hn-ggs.de and iserv-tarmstedt.de.

Host names with two IP numbers: offline.iserv.eu points to 2a01:4f8:c2c:4863::1 and 159.69.47.32.

Host names with one IP number: fns-os.de points to 91.249.231.95.