ulmd.de - robtex.com
ulmd.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:4f8:251:2e02::2:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | mastodon.cortex-media.de | ||||||
| A | 148.251.201.163🇩🇪 Hetzner148.251.0.0/16 HETZNER-RZ-BLK-ERX2 | ||||||
| NS | ns1.first-ns.de ⭐ | ||||||
| A | 2a01:4f8:0:a101::a:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns1.first-ns.de | ||||||
| A | 213.239.242.238🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2 | ||||||
| NS | robotns2.second-ns.de | ||||||
| A | 2a01:4f8:0:1::5ddc:2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | robotns2.second-ns.de | ||||||
| A | 213.133.100.103🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| NS | robotns3.second-ns.com | ||||||
| A | 2001:67c:192c::add:a3🇩🇪 NORIS-NETWORK2001:67c:192c::/48 | ||||||
| PTR | robotns3.second-ns.com | ||||||
| A | 193.47.99.3🇩🇪 NORIS-NETWORK193.47.99.0/24 | ||||||
| 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 mx a -all | ||||||
| SOA | ns1.first-ns.dedns@hetzner.com 2026-02-10 #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=1786141550 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSns1.first-ns.de2026-04-10 → 2026-08-07 · 2 obs
● 2026-08-07 22:56:00
●NSrobotns2.second-ns.de2026-04-10 → 2026-08-07 · 2 obs
● 2026-08-07 22:56:00
●NSrobotns3.second-ns.com2026-04-10 → 2026-08-07 · 2 obs
● 2026-08-07 22:56:00
●MXmail.cortex-media.de2026-04-10 → 2026-08-07 · 2 obs
● 2026-08-07 22:56:00
●A148.251.201.1632026-04-10 → 2026-08-07 · 2 obs
● 2026-08-07 22:56:00
●A2a01:4f8:251:2e02::2:12026-04-10 → 2026-08-07 · 2 obs
● 2026-08-07 22:56:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| ulmd.de | ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com | - |
✅ Authoritative Response
Server:213.239.242.238
NS records: ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ulmd.de (unsigned zone)
⏱️ Timing
Total: 1204ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 148.251.201.163 |
| AAAA | 1 | 2a01:4f8:251:2e02::2:1 |
| NS | 3 | ns1.first-ns.de, robotns2.second-ns.de... |
| MX | 1 | mail.cortex-media.de (pri: 10) |
| TXT | 1 | v=spf1 mx a -all |
| SOA | 1 | ns1.first-ns.de dns.hetzner.com |
Analysis
IP Addresses
ulmd.de directs to two IP numbers, 148.251.201.163 and 2a01:4f8:251:2e02::2:1
Name Servers
ulmd.de has three name servers — robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.
ulmd.de has at least partial name server overlap with other domains, such as lbs-bonn.de, tuxhome.net, albuch.de and two others.
Each of robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de points to two IP numbers. robotns3.second-ns.com points to 193.47.99.3 and 2001:67c:192c::add:a3. ns1.first-ns.de points to 213.239.242.238 and 2a01:4f8:0:a101::a:1. robotns2.second-ns.de points to 213.133.100.103 and 2a01:4f8:0:1::5ddc:2.
Mail Servers
The sole mail server for ulmd.de is mail.cortex-media.de.
The mail server setup of ulmd.de matches that of cortex-tickets.de, fhrk.de, peri-exchange.com and cortex-media.de, among other domains.
mail.cortex-media.de has two IP addresses: 136.243.217.222 and 2a01:4f8:212:1cc5::222.