b1up.de - robtex.com
b1up.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a03:4000:17:65c::1🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH | ||||||
| PTR | b1up.de | ||||||
| A | 188.68.41.40🇩🇪 netcup-AS188.68.40.0/22 | ||||||
| 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.b1up.de ⭐ | ||||||
| A | 2a03:4000:17:65c::1🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH | ||||||
| PTR | b1up.de | ||||||
| A | 188.68.41.40🇩🇪 netcup-AS188.68.40.0/22 | ||||||
| PTR | b1up.de | ||||||
| SOA | root-dns.netcup.netdnsadmin@netcup.net 2026-02-21 #20 | ||||||
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=1777054845 | ||||||
PTR for
Subdomains
mail.b1up.de |
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSroot-dns.netcup.net2026-03-01 → 2026-04-24 · 2 obs
● 2026-04-24 18:37:56
●NSsecond-dns.netcup.net2026-03-01 → 2026-04-24 · 2 obs
● 2026-04-24 18:37:56
●NSthird-dns.netcup.net2026-03-01 → 2026-04-24 · 2 obs
● 2026-04-24 18:37:56
●MXmail.b1up.de2026-03-01 → 2026-04-24 · 2 obs
● 2026-04-24 18:37:56
●A188.68.41.402026-03-01 → 2026-04-24 · 2 obs
● 2026-04-24 18:37:56
●A2a03:4000:17:65c::12026-03-01 → 2026-04-24 · 2 obs
● 2026-04-24 18:37:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| b1up.de | third-dns.netcup.net, second-dns.netcup.net, root-dns.netcup.net | - |
✅ Authoritative Response
Server:188.68.63.68
NS records: third-dns.netcup.net, second-dns.netcup.net, root-dns.netcup.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for b1up.de (unsigned zone)
⏱️ Timing
Total: 886ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 188.68.41.40 |
| AAAA | 1 | 2a03:4000:17:65c::1 |
| NS | 3 | third-dns.netcup.net, second-dns.netcup.net... |
| MX | 1 | mail.b1up.de (pri: 10) |
| SOA | 1 | root-dns.netcup.net dnsadmin.netcup.net |
Analysis
Hierarchy
mail.b1up.de is a child of b1up.de.
IP Addresses
b1up.de has two IP numbers: 2a03:4000:17:65c::1 and 188.68.41.40.
Other host names for instance v22017034461947070.bestsrv.de and mail.b1up.de share IP numbers with b1up.de.
Name Servers
b1up.de is delegated to three name servers: root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.
b1up.de at least partially shares name servers with other domains, including miamono.de, sonnhof.at, timed.de, jan-matthiesen.de and vervum.com.
Host names with two IP numbers:
root-dns.netcup.net: 2a03:4000:0:1::e1e1 and 46.38.225.225
second-dns.netcup.net: 2a03:4000:2:24b::c7c7 and 37.221.199.199
third-dns.netcup.net: 2a03:4001:0:106::3f44 and 188.68.63.68
Mail Servers
A single mail server handles b1up.de, mail.b1up.de.
The host name mail.b1up.de resolves to two IP numbers: 2a03:4000:17:65c::1 and 188.68.41.40.