o7a.de - dns.ninja
o7a.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 178.250.174.181🇩🇪 ONE-NETWORK178.250.168.0/21 | ||||||
| PTR | vps45428.alfahosting-vps.de | ||||||
| NS | cns1.alfahosting.info ⭐ | ||||||
| A | 2a01:64c0:0:5000::8🇩🇪 CLOUDPIT2a01:64c0::/32 | ||||||
| PTR | cns1.cloudpit.de | ||||||
| A | 109.237.142.8🇩🇪 CLOUDPIT109.237.128.0/20 | ||||||
| PTR | cns1.cloudpit.de | ||||||
| NS | cns2.alfahosting.info | ||||||
| A | 2a01:4f8:2b02:a88::105🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | cns2.cloudpit.com | ||||||
| A | 148.251.254.105🇩🇪 Hetzner148.251.0.0/16 HETZNER-RZ-BLK-ERX2 | ||||||
| PTR | cns2.cloudpit.com | ||||||
| NS | cns3.alfahosting.info | ||||||
| A | 2a02:2b80:101:5000::8🇩🇪 CLOUDPIT2a02:2b80:101::/48 | ||||||
| PTR | cns3.cloudpit.io | ||||||
| A | 109.237.143.8🇩🇪 CLOUDPIT109.237.128.0/20 | ||||||
| PTR | cns3.cloudpit.io | ||||||
| MX | mail.o7a.de ⭐ | ||||||
| A | 178.250.174.181🇩🇪 ONE-NETWORK178.250.168.0/21 | ||||||
| PTR | vps45428.alfahosting-vps.de | ||||||
| SOA | cns1.alfahosting.infohostmaster@alfahosting@de 2022-09-30 #2 | ||||||
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=1789830437 | ||||||
Subdomains
mail.o7a.de |
Same first word
Similar names
Previous names
o6ventures.de |
o6w.de |
o6x.de |
o6y.de |
o7-10.de |
o7-tobi.de |
o7.de |
o70.de |
o700.de |
o71.de |
o72.de |
o721.de |
o73.de |
o74.de |
o75.de |
o76.de |
o77.de |
o777.de |
o77o.de |
o78.de |
Next names
o7b.de |
o7c.de |
o7collective.de |
o7d.de |
o7e.de |
o7ean.de |
o7eleven.de |
o7f.de |
o7g.de |
o7h.de |
o7i.de |
o7ii.de |
o7j.de |
o7k.de |
o7l.de |
o7m.de |
o7o.de |
o7online.de |
o7p.de |
o7q.de |
DNS History
5 records (5 active, 0 former)
●NScns1.alfahosting.info2026-08-26 → 2026-09-19 · 2 obs
● 2026-09-19 15:41:26
●NScns2.alfahosting.info2026-08-26 → 2026-09-19 · 2 obs
● 2026-09-19 15:41:26
●NScns3.alfahosting.info2026-08-26 → 2026-09-19 · 2 obs
● 2026-09-19 15:41:26
●MXmail.o7a.de2026-08-26 → 2026-09-19 · 2 obs
● 2026-09-19 15:41:26
●A178.250.174.1812026-08-26 → 2026-09-19 · 2 obs
● 2026-09-19 15:41:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| o7a.de | cns1.alfahosting.info, cns2.alfahosting.info, cns3.alfahosting.info | - |
✅ Authoritative Response
Server:109.237.143.8
NS records: cns1.alfahosting.info, cns2.alfahosting.info, cns3.alfahosting.info
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for o7a.de (unsigned zone)
⏱️ Timing
Total: 1551ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 178.250.174.181 |
| NS | 3 | cns1.alfahosting.info, cns2.alfahosting.info... |
| MX | 1 | mail.o7a.de (pri: 10) |
| SOA | 1 | cns1.alfahosting.info hostmaster@alfahos |
Analysis
Hierarchy
o7a.de is a parent domain of mail.o7a.de.
IP Addresses
o7a.de resolves to just one IP address, 178.250.174.181.
There are other host names — mail.o7a.de among them — that share IP numbers with o7a.de.
Name Servers
DNS for o7a.de is handled by three authoritative name servers: cns1.alfahosting.info, cns2.alfahosting.info and cns3.alfahosting.info.
o7a.de shares at least some of its name servers with other domains, including mwcs-buxheim.de, itconcept.de, tavantzis.de and two others.
Three hostnames — cns1.alfahosting.info, cns2.alfahosting.info and cns3.alfahosting.info — each have two IP addresses: cns1.alfahosting.info has 109.237.142.8 and 2a01:64c0:0:5000::8, cns2.alfahosting.info has 148.251.254.105 and 2a01:4f8:2b02:a88::105, and cns3.alfahosting.info has 109.237.143.8 and 2a02:2b80:101:5000::8.
Mail Servers
The sole mail server for o7a.de is mail.o7a.de.
mail.o7a.de has exactly one IP number: 178.250.174.181.