openschoolserver.de - dns.ninja
openschoolserver.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 94.130.56.186🇩🇪 Hetzner94.130.0.0/16 HETZNER-DC | ||||||
| PTR | static.186.56.130.94.clients.your-server.de | ||||||
| NS | inf1.extis.de ⭐ | ||||||
| NS | inf1.extis.net | ||||||
| A | 195.201.88.88🇩🇪 Hetzner195.201.0.0/16 HETZNER-DC | ||||||
| PTR | inf1.extis.net | ||||||
| NS | inf2.extis.net | ||||||
| A | 95.216.223.221🇫🇮 Hetzner95.216.0.0/16 HETZNER-DC | ||||||
| PTR | inf2.extis.net | ||||||
| MX | mail.openschoolserver.net ⭐ | ||||||
| SOA | inf1.extis.depostmaster@extis.de 2020-01-24 #0 | ||||||
de
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | f.nic.de ⭐ | ||||||
| NS | a.nic.de | ||||||
| NS | l.de.net ⚠️ Not in parent delegation | ||||||
| NS | n.de.net ⚠️ Not in parent delegation | ||||||
| NS | s.de.net ⚠️ Not in parent delegation | ||||||
| NS | z.nic.de | ||||||
| SOA | f.nic.dedns-operations@denic.de serial=1784245401 | ||||||
Subdomains
www.openschoolserver.de |
Same first word
openschoolserver.net |
openschoolserver.de |
openschoolserver.eu |
openschoolserver.com |
DNS History
10 records (5 active, 5 former)
●NSinf1.extis.de2020-01-31 → 2026-07-17 · 3 obs
● 2020-01-31 19:07:36
● 2026-07-17 00:07:34
●NSinf1.extis.net2020-01-31 → 2026-07-17 · 3 obs
● 2020-01-31 19:07:36
● 2026-07-17 00:07:34
●NSinf2.extis.net2020-01-31 → 2026-07-17 · 3 obs
● 2020-01-31 19:07:36
● 2026-07-17 00:07:34
○NSns1.first-ns.de2015-07-20 → 2017-02-18 · 4 obs
● 2017-02-18 20:36:08
○ 2020-01-31 19:07:36
○ 2026-07-17 00:07:34
○NSrobotns2.second-ns.de2015-07-20 → 2017-02-18 · 4 obs
● 2017-02-18 20:36:08
○ 2020-01-31 19:07:36
○ 2026-07-17 00:07:34
○NSrobotns3.second-ns.com2015-07-20 → 2017-02-18 · 4 obs
● 2017-02-18 20:36:08
○ 2020-01-31 19:07:36
○ 2026-07-17 00:07:34
●MXmail.openschoolserver.net2015-07-20 → 2026-07-17 · 2 obs
● 2026-07-17 00:07:34
○A136.243.130.2482016-02-29 → 2026-03-18 · 5 obs
● 2016-02-29 03:05:00
● 2026-03-18 16:27:44
○ 2026-06-06 17:04:28
○ 2026-07-17 00:07:34
○A88.198.197.342015-07-20 → 2015-11-29 · 4 obs
● 2015-11-29 13:19:34
○ 2016-02-29 03:05:00
○ 2026-07-17 00:07:34
●A94.130.56.1862026-06-06 → 2026-07-17 · 3 obs
● 2026-06-06 17:04:28
● 2026-07-17 00:07:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| openschoolserver.de | inf1.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.de (unsigned zone)
⏱️ Timing
Total: 2749ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 94.130.56.186 |
| NS | 2 | inf2.extis.net, inf1.extis.net |
| MX | 1 | mail.openschoolserver.net (pri: 10) |
| SOA | 1 | inf1.extis.de postmaster.extis.de |
Analysis
Hierarchy
www.openschoolserver.de is delegated beneath openschoolserver.de.
IP Addresses
openschoolserver.de has exactly one IP address — 94.130.56.186.
Other host names — openschoolserver.net, extis.de, www.openschoolserver.de and static.186.56.130.94.clients.your-server.de — share IP numbers with openschoolserver.de.
Name Servers
openschoolserver.de is delegated to three name servers: inf1.extis.de, inf1.extis.net and inf2.extis.net.
There is at least partial name server overlap between openschoolserver.de and other domains — extis.de, cephalix.com, claxss.at and two more among them.
inf1.extis.net → 195.201.88.88 and inf2.extis.net → 95.216.223.221: one IP number per host name.
Mail Servers
openschoolserver.de uses one mail server — mail.openschoolserver.net.
openschoolserver.de uses the same mail servers as other domains, including openschoolserver.net.