catdevnull.de - robtex.com
catdevnull.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 46.38.243.234🇩🇪 netcup-AS46.38.240.0/22 | ||||||
| NS | root-dns.netcup.net ⭐ | ||||||
| A | 2a03:4000:0:1::e1e1🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH | ||||||
| PTR | root-dns.netcup.net | ||||||
| A | 46.38.225.225🇩🇪 netcup-AS46.38.225.0/24 | ||||||
| PTR | root-dns.netcup.net | ||||||
| NS | second-dns.netcup.net | ||||||
| A | 2a03:4000:2:24b::c7c7🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH | ||||||
| PTR | second-dns.netcup.net | ||||||
| A | 37.221.199.199🇩🇪 netcup-AS37.221.196.0/22 | ||||||
| PTR | second-dns.netcup.net | ||||||
| NS | third-dns.netcup.net | ||||||
| A | 2a03:4001:0:106::3f44🇩🇪 netcup-AS2a03:4001::/32 NETCUP-GMBH | ||||||
| PTR | third-dns.netcup.net | ||||||
| A | 188.68.63.68🇩🇪 netcup-AS188.68.63.0/24 NETCUP-GMBH | ||||||
| PTR | third-dns.netcup.net | ||||||
| MX | mail.catdevnull.de ⭐ | ||||||
| A | 46.38.243.234🇩🇪 netcup-AS46.38.240.0/22 | ||||||
| TXT | v=spf1 include:spf.mailjet.com ~all | ||||||
| SOA | root-dns.netcup.netdnsadmin@netcup.net 2026-08-25 #37 | ||||||
de
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | f.nic.de ⭐ | ||||||
| NS | a.nic.de | ||||||
| NS | l.de.net | ||||||
| NS | n.de.net | ||||||
| NS | s.de.net | ||||||
| NS | z.nic.de | ||||||
| SOA | f.nic.dedns-operations@denic.de serial=1790445961 | ||||||
Subdomains
mail.catdevnull.de |
Same first word
Similar names
Previous names
Next names
DNS History
5 records (5 active, 0 former)
●NSroot-dns.netcup.net2026-08-20 → 2026-09-26 · 2 obs
● 2026-09-26 18:35:56
●NSsecond-dns.netcup.net2026-08-20 → 2026-09-26 · 2 obs
● 2026-09-26 18:35:56
●NSthird-dns.netcup.net2026-08-20 → 2026-09-26 · 2 obs
● 2026-09-26 18:35:56
●MXmail.catdevnull.de2026-08-20 → 2026-09-26 · 2 obs
● 2026-09-26 18:35:56
●A46.38.243.2342026-08-20 → 2026-09-26 · 2 obs
● 2026-09-26 18:35:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| catdevnull.de | root-dns.netcup.net, third-dns.netcup.net, second-dns.netcup.net | - |
✅ Authoritative Response
Server:37.221.199.199
NS records: root-dns.netcup.net, third-dns.netcup.net, second-dns.netcup.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for catdevnull.de (unsigned zone)
⏱️ Timing
Total: 1321ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 46.38.243.234 |
| NS | 3 | second-dns.netcup.net, root-dns.netcup.net... |
| MX | 1 | mail.catdevnull.de (pri: 10) |
| TXT | 1 | v=spf1 include:spf.mailjet.com ~all |
| SOA | 1 | root-dns.netcup.net dnsadmin.netcup.net |
Analysis
Hierarchy
mail.catdevnull.de is delegated beneath catdevnull.de.
IP Addresses
catdevnull.de directs to one IP number, which is 46.38.243.234.
Among the host names that share IP numbers with catdevnull.de are z14.bestsrv.de, mail.oelundessig.de, mail.jurazentrale.de and two others.
Name Servers
catdevnull.de is served by three name servers: root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.
There is at least partial name server overlap between catdevnull.de and other domains — fischafreunde.at, corpomedic.de, kf-karlsruhe.de and two more among them.
The hostnames root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net each direct to two IP addresses — root-dns.netcup.net to 46.38.225.225 and 2a03:4000:0:1::e1e1, second-dns.netcup.net to 37.221.199.199 and 2a03:4000:2:24b::c7c7, and third-dns.netcup.net to 188.68.63.68 and 2a03:4001:0:106::3f44.
Mail Servers
catdevnull.de routes its mail through a single mail server, mail.catdevnull.de.
mail.catdevnull.de resolves to 46.38.243.234 and no other IP number.