schellingschule.de - dns.ninja
schellingschule.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 158.181.50.132🇩🇪 Optitrust158.181.48.0/21 optitrust | ||||||
| PTR | vs12296.internet1.de | ||||||
| NS | ns2.internet1.de ⭐ | ||||||
| A | 2a01:138:a03e::200🇩🇪 IPX-AS155982a01:138::/32 IP Exchange GmbH | ||||||
| PTR | ns2.internet1.de | ||||||
| A | 62.146.37.200🇩🇪 IPX-AS1559862.146.36.0/22 NorthC Deutschland GmbH | ||||||
| PTR | ns2.internet1.de | ||||||
| NS | ns.internet1.de | ||||||
| A | 2a00:6140:103::200🇩🇪 Optitrust2a00:6140::/32 optitrust | ||||||
| PTR | ns.internet1.de | ||||||
| A | 188.64.59.200🇩🇪 Optitrust188.64.56.0/21 optitrust | ||||||
| PTR | ns.internet1.de | ||||||
| NS | ns3.internet1.de | ||||||
| A | 2a00:6140:117::200🇩🇪 Optitrust2a00:6140::/32 optitrust | ||||||
| PTR | ns3.internet1.de | ||||||
| A | 158.181.50.250🇩🇪 Optitrust158.181.48.0/21 optitrust | ||||||
| PTR | ns3.internet1.de | ||||||
| MX | mx1.helsinki.tools ⭐ | ||||||
| A | 2a01:4f8:1c1b:cc77::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | mx1.helsinki.tools | ||||||
| A | 159.69.216.194🇩🇪 Hetzner159.69.0.0/16 HETZNER-DC | ||||||
| PTR | mx1.helsinki.tools | ||||||
| TXT | v=spf1 a mx include:spf.helsinki.tools ip4:158.181.50.137 ip4:158.181.50.132 ... | ||||||
| SOA | ns.internet1.dehostmaster@internet1.de 2024-12-05 #3 | ||||||
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=1784952168 | ||||||
Subdomains
mail.schellingschule.de |
Same first word
schellingschule.de |
DNS History
8 records (5 active, 3 former)
●NSns.internet1.de2015-07-17 → 2026-07-25 · 2 obs
● 2026-07-25 04:22:46
●NSns2.internet1.de2015-07-17 → 2026-07-25 · 2 obs
● 2026-07-25 04:22:46
●NSns3.internet1.de2015-07-17 → 2026-07-25 · 2 obs
● 2026-07-25 04:22:46
○MXmail.schellingschule.de2015-07-17 → 2018-07-29 · 4 obs
● 2018-07-29 13:47:30
○ 2026-04-10 00:06:40
○ 2026-07-25 04:22:46
●MXmx1.helsinki.tools2026-04-10 → 2026-07-25 · 3 obs
● 2026-04-10 00:06:40
● 2026-07-25 04:22:46
●A158.181.50.1322026-04-10 → 2026-07-25 · 3 obs
● 2026-04-10 00:06:40
● 2026-07-25 04:22:46
○A158.181.50.372018-07-29 → 2018-07-29 · 4 obs
● 2018-07-29 13:47:30
○ 2026-04-10 00:06:40
○ 2026-07-25 04:22:46
○A188.64.56.972015-07-17 → 2017-02-10 · 4 obs
● 2017-02-10 05:45:38
○ 2018-07-29 13:47:30
○ 2026-07-25 04:22:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| schellingschule.de | ns.internet1.de, ns2.internet1.de, ns3.internet1.de | 6 records |
✅ Authoritative Response
Server:158.181.50.250
NS records: ns.internet1.de, ns2.internet1.de, ns3.internet1.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for schellingschule.de (unsigned zone)
⏱️ Timing
Total: 637ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 158.181.50.132 |
| NS | 3 | ns.internet1.de, ns3.internet1.de... |
| MX | 1 | mx1.helsinki.tools (pri: 110) |
| TXT | 1 | v=spf1 a mx include:spf.helsinki.tools i |
| SOA | 1 | ns.internet1.de hostmaster.internet1.de |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (ns3.internet1.de, ns2.internet1.de, ns.internet1.de...)
Analysis
Hierarchy
schellingschule.de is a parent domain of mail.schellingschule.de.
IP Addresses
schellingschule.de resolves to just one IP address, 158.181.50.132.
Two other host names, along with textwerkstatt.de, fahrner-finanz.de and flair-mehr.de, also share IP numbers with schellingschule.de.
Name Servers
Three name servers are authoritative for schellingschule.de: ns2.internet1.de, ns3.internet1.de and ns.internet1.de.
schellingschule.de shares at least some of its name servers with other domains, including rohrreinigung-essen.de, cateringguide24.com, batterien-und-akkus.com and two others.
These name servers are frequently seen alongside the name servers server1.softwareag.com.
ns2.internet1.de resolves to 62.146.37.200 and 2a01:138:a03e::200. ns3.internet1.de resolves to 158.181.50.250 and 2a00:6140:117::200. ns.internet1.de resolves to 188.64.59.200 and 2a00:6140:103::200. All three hostnames point to two IP numbers each.
Mail Servers
The sole mail server for schellingschule.de is mx1.helsinki.tools.
schellingschule.de's MX records match those of several other domains — for example portal64.de, emenes.de, svw.info and remstalgymnasium.de.
There is at least a partial MX overlap between schellingschule.de and other domains, including aquitronic.de, radical-dreamers.de, elma.id and two others.
These mail servers frequently appear alongside the mail servers mx2.helsinki.tools and mx3.helsinki.tools.
mx1.helsinki.tools points to two IP addresses: 159.69.216.194 and 2a01:4f8:1c1b:cc77::1.