openschoolserver.eu - dns.ninja

openschoolserver.eu

DNSSEC⚠️ Not signed
A136.243.130.248🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3
PTRstatic.248.130.243.136.clients.your-server.de
NSinf1.extis.de ⭐
NSinf1.extis.net
A195.201.88.88🇩🇪 Hetzner195.201.0.0/16 HETZNER-DC
PTRinf1.extis.net
NSinf2.extis.net
A95.216.223.221🇫🇮 Hetzner95.216.0.0/16 HETZNER-DC
PTRinf2.extis.net
MXmail.openschoolserver.eu ⭐
A136.243.130.248🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3
PTRstatic.248.130.243.136.clients.your-server.de
SOAinf1.extis.depostmaster@extis.de 2020-01-24 #0

eu

DNSSEC🔒 Signed (DS record present)
NSsi.dns.eu ⭐
NSbe.dns.eu
NSw.dns.eu
NSx.dns.eu
NSy.dns.eu
SOAsi.dns.eutech@eurid.eu serial=1126159941

Subdomains

mail.openschoolserver.eu

Same first word

openschoolserver.de
openschoolserver.eu
openschoolserver.com
openschoolserver.net

DNS History

9 records (5 active, 4 former)

20162017201820192020202120222023202420252026NSinf1.extis.deinf1.extis.netinf2.extis.netns1.first-ns.derobotns2.second-ns.derobotns3.second-ns.comMXmail.openschoolserver.euA136.243.130.248188.40.130.101
●NSinf1.extis.de2026-06-07 → 2026-07-16 · 3 obs
○ 2017-04-09 22:49:14
● 2026-06-07 14:08:42
● 2026-07-16 04:55:36
●NSinf1.extis.net2026-06-07 → 2026-07-16 · 3 obs
○ 2017-04-09 22:49:14
● 2026-06-07 14:08:42
● 2026-07-16 04:55:36
●NSinf2.extis.net2026-06-07 → 2026-07-16 · 3 obs
○ 2017-04-09 22:49:14
● 2026-06-07 14:08:42
● 2026-07-16 04:55:36
○NSns1.first-ns.de2015-06-01 → 2017-04-09 · 4 obs
● 2015-06-01 03:53:04
● 2017-04-09 22:49:14
○ 2026-06-07 14:08:42
○ 2026-07-16 04:55:36
○NSrobotns2.second-ns.de2015-06-01 → 2017-04-09 · 4 obs
● 2015-06-01 03:53:04
● 2017-04-09 22:49:14
○ 2026-06-07 14:08:42
○ 2026-07-16 04:55:36
○NSrobotns3.second-ns.com2015-06-01 → 2017-04-09 · 4 obs
● 2015-06-01 03:53:04
● 2017-04-09 22:49:14
○ 2026-06-07 14:08:42
○ 2026-07-16 04:55:36
●MXmail.openschoolserver.eu2015-06-01 → 2026-07-16 · 2 obs
● 2015-06-01 03:53:04
● 2026-07-16 04:55:36
●A136.243.130.2482016-03-27 → 2026-07-16 · 3 obs
○ 2015-12-24 14:52:44
● 2016-03-27 02:55:48
● 2026-07-16 04:55:36
○A188.40.130.1012015-06-01 → 2015-12-24 · 4 obs
● 2015-06-01 03:53:04
● 2015-12-24 14:52:44
○ 2016-03-27 02:55:48
○ 2026-07-16 04:55:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
euw.dns.eu, x.dns.eu, y.dns.eu, be.dns.eu...-
openschoolserver.euinf1.extis.net, inf2.extis.net-

✅ Authoritative Response

Server:95.216.223.221

NS records: inf1.extis.net, inf2.extis.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for openschoolserver.eu (unsigned zone)

⏱️ Timing

Total: 679ms | Queries: -

📄 Records

TypeCountSample Data
A1136.243.130.248
NS2inf2.extis.net, inf1.extis.net
MX1mail.openschoolserver.eu (pri: 10)
SOA1inf1.extis.de postmaster.extis.de

Analysis

Hierarchy

mail.openschoolserver.eu is a subdomain of openschoolserver.eu.

IP Addresses

openschoolserver.eu resolves to one IP address: 136.243.130.248.

mail.openschoolserver.eu and static.248.130.243.136.clients.your-server.de are among other host names that share IP numbers with openschoolserver.eu.

Name Servers

Three name servers are authoritative for openschoolserver.eu: inf1.extis.de, inf1.extis.net and inf2.extis.net.

The name servers of openschoolserver.eu overlap at least partially with those of other domains — among them openschoolserver.net, extis.de, cephalix.com and two more.

Both inf1.extis.net and inf2.extis.net have a single IP address each — inf1.extis.net resolves to 195.201.88.88 while inf2.extis.net resolves to 95.216.223.221.

Mail Servers

Mail for openschoolserver.eu is handled by a single mail server, mail.openschoolserver.eu.

There is one IP number for mail.openschoolserver.eu: 136.243.130.248.