cortex.cx - robtex.com
cortex.cx
| DNSSEC | ⚠️ Not signed | ||||||
| A | 88.198.238.105🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4 | ||||||
| PTR | cere.cortex-media.de | ||||||
| NS | hydrogen.ns.hetzner.com ⭐ | ||||||
| A | 2a01:4f8:0:1::add:1098🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | hydrogen.ns.hetzner.com | ||||||
| A | 213.133.100.98🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | hydrogen.ns.hetzner.com | ||||||
| NS | helium.ns.hetzner.de | ||||||
| A | 2001:67c:192c::add:5🇩🇪 NORIS-NETWORK2001:67c:192c::/48 | ||||||
| PTR | helium.ns.hetzner.de | ||||||
| A | 193.47.99.5🇩🇪 NORIS-NETWORK193.47.99.0/24 | ||||||
| PTR | helium.ns.hetzner.de | ||||||
| NS | oxygen.ns.hetzner.com | ||||||
| A | 2a01:4f8:0:1::add:2992🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | oxygen.ns.hetzner.com | ||||||
| A | 88.198.229.192🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4 | ||||||
| PTR | oxygen.ns.hetzner.com | ||||||
| MX | mail.cortex-media.de ⭐ | ||||||
| A | 2a01:4f8:212:1cc5::222🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | mail.cortex-media.de | ||||||
| A | 136.243.217.222🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3 | ||||||
| PTR | mail.cortex-media.de | ||||||
| TXT | v=spf1 a mx -all | ||||||
| SOA | hydrogen.ns.hetzner.comdns@hetzner.com 2026-03-27 #0 | ||||||
cx
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns.anycast.nic.cx ⭐ | ||||||
| NS | ns1.anycastdns.cz | ||||||
| NS | ns2.anycastdns.cz | ||||||
| TXT | Generation Time: 1792739070 | ||||||
| TXT | Generation Time ISO 8601: 2026-10-23 07:04:30 | ||||||
| SOA | ns.anycast.nic.cxhostmaster@coccaregistry.org 2026-10-23 #6 | ||||||
Same first word
Similar names
Previous names
copydock.cx |
copywriter.cx |
cor.cx |
coral.cx |
corax.cx |
cordillera.cx |
cordx.cx |
core.cx |
coreai.cx |
coreaxis.cx |
coredump.cx |
corex.cx |
corner.cx |
cornet.cx |
corpus.cx |
corruption.cx |
cort.cx |
corte.cx |
Next names
cortez.cx |
cos.cx |
cosmi.cx |
cosmic.cx |
cosmicclassroom.cx |
cosmicpct.cx |
cosmo.cx |
cosmosx.cx |
cot.cx |
cotton.cx |
couch.cx |
counter.cx |
counterfactual.cx |
coupon.cx |
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courses.cx |
DNS History
5 records (5 active, 0 former)
●NShelium.ns.hetzner.de2026-09-07 → 2026-10-23 · 2 obs
● 2026-10-23 07:47:40
●NShydrogen.ns.hetzner.com2026-09-07 → 2026-10-23 · 2 obs
● 2026-10-23 07:47:40
●NSoxygen.ns.hetzner.com2026-09-07 → 2026-10-23 · 2 obs
● 2026-10-23 07:47:40
●MXmail.cortex-media.de2026-09-07 → 2026-10-23 · 2 obs
● 2026-10-23 07:47:40
●A88.198.238.1052026-09-07 → 2026-10-23 · 2 obs
● 2026-10-23 07:47:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cx | ns.anycast.nic.cx, ns1.anycastdns.cz, ns2.anycastdns.cz | 5 records |
| cortex.cx | helium.ns.hetzner.de, oxygen.ns.hetzner.com, hydrogen.ns.hetzner.com | - |
✅ Authoritative Response
Server:193.47.99.5
NS records: helium.ns.hetzner.de, oxygen.ns.hetzner.com, hydrogen.ns.hetzner.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cortex.cx (unsigned zone)
⏱️ Timing
Total: 549ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 88.198.238.105 |
| NS | 3 | hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com... |
| MX | 1 | mail.cortex-media.de (pri: 10) |
| TXT | 1 | v=spf1 a mx -all |
| SOA | 1 | hydrogen.ns.hetzner.com dns.hetzner.com |
📌 Glue Records Collected
Total: 5
In-bailiwick: 2 (ns.anycast.nic.cx, ns.anycast.nic.cx)
Out-of-bailiwick: 3 (ns1.anycastdns.cz, ns2.anycastdns.cz, ns1.anycastdns.cz)
Analysis
IP Addresses
cortex.cx points to a single IP number: 88.198.238.105.
Additional host names — kortex-media.com, cortexmedia.eu, cortex-media.com and two others — share IP numbers with cortex.cx.
Name Servers
Three name servers are authoritative for cortex.cx: hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.
There is at least partial name server overlap between cortex.cx and other domains — weedox.dk, searles.de, lemmensweb.nl and two more among them.
These name servers tend to appear in combination with the name servers ns1.your-server.de, robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.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
cortex.cx has one mail server: mail.cortex-media.de.
cortex.cx shares the same mail server setup as other domains, including fhrk.de, cortex-tickets.at, cortex-tickets.es and two others.
mail.cortex-media.de carries two IP numbers: 136.243.217.222 and 2a01:4f8:212:1cc5::222.