0xdecafbad.net - robtex.com
0xdecafbad.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 193.26.120.4🇩🇪 WUSEL-AS193.26.120.0/24 Kai Siering | ||||||
| PTR | 0xdecafbad.net | ||||||
| NS | librarian.uu.org ⭐ | ||||||
| A | 192.251.226.254🇩🇪 AS4830org192.251.226.0/24 4830.org e. V. | ||||||
| PTR | librarian.uu.org | ||||||
| NS | dns-fks.uu.org | ||||||
| A | 2a01:4f9:3b:5822:0:41ff:fe15:598a🇩🇪 Hetzner2a01:4f9::/32 HETZNER-IPv6-BLK | ||||||
| PTR | dns-hel.uu.org | ||||||
| A | 2a06:e881:1709:1:0:57ff:fefd:bcd8🇩🇪 AS4830org2a06:e881:1709::/48 | ||||||
| A | 65.21.89.138🇫🇮 Hetzner65.21.0.0/16 HETZNER-DC | ||||||
| PTR | dns-hel.uu.org | ||||||
| A | 87.253.188.216🇩🇪 AS4830org87.253.188.0/24 4830.org e. V., HAM | ||||||
| PTR | dns-ham.4830.org | ||||||
| NS | dns-gut.4830.org | ||||||
| A | 2a06:e881:1706:11:0:c2ff:fe71:3659🇩🇪 AS4830org2a06:e881:1706::/48 | ||||||
| A | 194.113.54.89🇩🇪 AS4830org194.113.54.0/24 4830.org e. V., BER | ||||||
| PTR | dns-gut.4830.org | ||||||
| MX | mail.0xdecafbad.net ⭐ | ||||||
| A | 2001:678:2c0:1:0:c1ff:fe1a:782b🇩🇪 GGNET2000::/12 | ||||||
| A | 193.26.120.43🇩🇪 WUSEL-AS193.26.120.0/24 Kai Siering | ||||||
| PTR | postoffice.uu.org | ||||||
| MX | mail.uu.org(50) | ||||||
| A | 2001:678:2c0:1::42🇩🇪 GGNET2000::/12 | ||||||
| A | 193.26.120.42🇩🇪 WUSEL-AS193.26.120.0/24 Kai Siering | ||||||
| PTR | mail.uu.org | ||||||
| SOA | librarian.uu.orgdns-fks@uu.org 2021-02-17 #2 | ||||||
net
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1778770081 | ||||||
PTR for
NS for
Subdomains
mail.0xdecafbad.net |
Same first word
0xdecafbad.org |
0xdecafbad.net |
DNS History
9 records (6 active, 3 former)
●NSdns-fks.uu.org2026-02-18 → 2026-05-14 · 3 obs
● 2026-02-18 14:24:44
● 2026-05-14 15:10:44
●NSdns-gut.4830.org2026-02-18 → 2026-05-14 · 3 obs
● 2026-02-18 14:24:44
● 2026-05-14 15:10:44
●NSlibrarian.uu.org2015-06-05 → 2026-05-14 · 2 obs
● 2026-05-14 15:10:44
○NSsdns.xn--cfan.net2015-06-05 → 2017-08-20 · 4 obs
● 2017-08-20 07:10:08
○ 2026-02-18 14:24:44
○ 2026-05-14 15:10:44
○MXfamine.uu.org2015-06-05 → 2017-08-20 · 4 obs
● 2017-08-20 07:10:08
○ 2026-02-18 14:24:44
○ 2026-05-14 15:10:44
●MXmail.0xdecafbad.net2026-02-18 → 2026-05-14 · 3 obs
● 2026-02-18 14:24:44
● 2026-05-14 15:10:44
○MXpestilence.uu.org2015-06-05 → 2017-08-20 · 4 obs
● 2017-08-20 07:10:08
○ 2026-02-18 14:24:44
○ 2026-05-14 15:10:44
●A193.26.120.42015-06-05 → 2026-05-14 · 2 obs
● 2026-05-14 15:10:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 0xdecafbad.net | dns-fks.uu.org, dns-gut.4830.org | - |
✅ Authoritative Response
Server:194.113.54.89
NS records: dns-fks.uu.org, dns-gut.4830.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 0xdecafbad.net (unsigned zone)
⏱️ Timing
Total: 862ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 193.26.120.4 |
| NS | 2 | dns-gut.4830.org, dns-fks.uu.org |
| MX | 2 | mail.uu.org (pri: 50), mail.0xdecafbad.net (pri: 10) |
| SOA | 1 | librarian.uu.org dns-fks.uu.org |
Analysis
Hierarchy
0xdecafbad.net is parent of mail.0xdecafbad.net.
Name Server Role
0xdecafbad.net serves as the name server for sietland.net.
azrael.uu.org, librarian.uu.org and gaspode.42.to commonly serve as a name server alongside 0xdecafbad.net.
IP Addresses
0xdecafbad.net points to a single IP: 193.26.120.4.
Name Servers
0xdecafbad.net is delegated to three name servers: dns-gut.4830.org, dns-fks.uu.org and librarian.uu.org.
0xdecafbad.net at least partially shares its name servers with other domains, for instance uu.org, fee-owl.de, 120.26.193.in-addr.arpa, free-owl.de and sietland.net.
These name servers are commonly used with weyoun3.cord.de, weyoun.cord.de and de3.dn42.uu.org.
Four IP numbers:
dns-fks.uu.org points to 2a01:4f9:3b:5822:0:41ff:fe15:598a, 2a06:e881:1709:1:0:57ff:fefd:bcd8, 65.21.89.138 and 87.253.188.216.
Two IP numbers:
dns-gut.4830.org points to 2a06:e881:1706:11:0:c2ff:fe71:3659 and 194.113.54.89.
One IP number:
librarian.uu.org points to 192.251.226.254.
Mail Servers
Two mail servers mail.0xdecafbad.net and mail.uu.org handle 0xdecafbad.net.
Host names with two IP numbers: mail.0xdecafbad.net points to 2001:678:2c0:1:0:c1ff:fe1a:782b and 193.26.120.43; mail.uu.org points to 2001:678:2c0:1::42 and 193.26.120.42