cortexdb.de - dns.ninja
cortexdb.de
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=1782304307 | ||||||
Previously NS for
cortexdb.de |
Same first word
Similar names
DNS History
10 records (6 active, 4 former)
○NScortexdb.de2015-08-05 → 2017-03-17 · 4 obs
● 2017-03-17 10:21:40
○ 2026-02-21 22:17:24
○ 2026-06-24 12:38:36
●NShelium.ns.hetzner.de2026-02-21 → 2026-06-24 · 6 obs
● 2026-02-21 22:17:24
● 2026-04-11 17:00:32
○ 2026-04-13 22:59:30
● 2026-06-13 00:16:20
● 2026-06-24 12:38:36
●NShydrogen.ns.hetzner.com2026-02-21 → 2026-06-24 · 6 obs
● 2026-02-21 22:17:24
● 2026-04-11 17:00:32
○ 2026-04-13 22:59:30
● 2026-06-13 00:16:20
● 2026-06-24 12:38:36
○NSns1.kigmbh.de2015-08-05 → 2017-03-17 · 4 obs
● 2017-03-17 10:21:40
○ 2026-02-21 22:17:24
○ 2026-06-24 12:38:36
○NSns2.kigmbh.de2015-08-05 → 2017-03-17 · 4 obs
● 2017-03-17 10:21:40
○ 2026-02-21 22:17:24
○ 2026-06-24 12:38:36
●NSoxygen.ns.hetzner.com2026-02-21 → 2026-06-24 · 6 obs
● 2026-02-21 22:17:24
● 2026-04-11 17:00:32
○ 2026-04-13 22:59:30
● 2026-06-13 00:16:20
● 2026-06-24 12:38:36
●MX7ew2.your-vhost.de2026-02-21 → 2026-06-24 · 8 obs
● 2026-03-30 16:40:16
○ 2026-04-05 08:31:52
● 2026-04-09 13:51:32
● 2026-04-11 17:00:32
○ 2026-04-13 22:59:30
● 2026-06-13 00:16:20
● 2026-06-24 12:38:36
●A213.133.106.582026-02-21 → 2026-06-24 · 9 obs
● 2026-02-21 22:17:24
● 2026-03-30 16:40:16
○ 2026-04-05 08:31:52
● 2026-04-09 13:51:32
● 2026-04-11 17:00:32
○ 2026-04-13 22:59:30
● 2026-06-13 00:16:20
● 2026-06-24 12:38:36
●A2a01:4f8:d0a:2045::22026-02-21 → 2026-06-24 · 9 obs
● 2026-02-21 22:17:24
● 2026-03-30 16:40:16
○ 2026-04-05 08:31:52
● 2026-04-09 13:51:32
● 2026-04-11 17:00:32
○ 2026-04-13 22:59:30
● 2026-06-13 00:16:20
● 2026-06-24 12:38:36
○A88.198.143.1172015-08-05 → 2017-03-17 · 4 obs
● 2017-03-17 10:21:40
○ 2026-02-21 22:17:24
○ 2026-06-24 12:38:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| cortexdb.de | hydrogen.ns.hetzner.com, helium.ns.hetzner.de, oxygen.ns.hetzner.com | - |
✅ Authoritative Response
Server:193.47.99.5
NS records: hydrogen.ns.hetzner.com, helium.ns.hetzner.de, oxygen.ns.hetzner.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cortexdb.de (unsigned zone)
⏱️ Timing
Total: 1216ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 213.133.106.58 |
| AAAA | 1 | 2a01:4f8:d0a:2045::2 |
| NS | 3 | helium.ns.hetzner.de, hydrogen.ns.hetzner.com... |
| MX | 1 | 7ew2.your-vhost.de (pri: 10) |
| TXT | 1 | v=spf1 mx include:spf.hetzner.company -a |
| SOA | 1 | hydrogen.ns.hetzner.com dns.hetzner.com |
Analysis
IP Addresses
cortexdb.de directs to two IP numbers, 213.133.106.58 and 2a01:4f8:d0a:2045::2
Additional host names — icom-media.com, avgothia.de, wunschkonzert.com and two others — share IP numbers with cortexdb.de.
Name Servers
Three name servers are authoritative for cortexdb.de: hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.
cortexdb.de has at least partial name server overlap with other domains, such as my-giftcard.de, gf.works, snau.edu.ua and two others.
It is common to see these name servers used together with name servers ns1.first-ns.de and ns1.your-server.de.
hydrogen.ns.hetzner.com resolves to 213.133.100.98 and 2a01:4f8:0:1::add:1098. oxygen.ns.hetzner.com resolves to 88.198.229.192 and 2a01:4f8:0:1::add:2992. helium.ns.hetzner.de resolves to 193.47.99.5 and 2001:67c:192c::add:5. All three hostnames point to two IP numbers each.
Mail Servers
cortexdb.de has one mail server: 7ew2.your-vhost.de.
7ew2.your-vhost.de has two IP addresses: 213.133.106.58 and 2a01:4f8:d0a:2045::2.