b2fusion.de - robtex.com
b2fusion.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.170.113.224🇩🇪 netcup-AS185.170.112.0/22 | ||||||
| PTR | b2fusion.de | ||||||
| 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.b2fusion.de ⭐ | ||||||
| A | 185.233.107.218🇩🇪 netcup-AS185.233.104.0/22 | ||||||
| PTR | mail.b2fusion.de | ||||||
| TXT | v=spf1 mx -all | ||||||
| SOA | root-dns.netcup.netdnsadmin@netcup.net 2023-10-14 #1 | ||||||
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=1774587730 | ||||||
PTR for
Subdomains
mail.b2fusion.de |
Same first word
b2fusion.de |
DNS History
6 records (5 active, 1 former)
●NSroot-dns.netcup.net2015-07-17 → 2026-03-27 · 2 obs
● 2026-03-27 05:24:18
●NSsecond-dns.netcup.net2015-07-17 → 2026-03-27 · 2 obs
● 2026-03-27 05:24:18
●NSthird-dns.netcup.net2015-07-17 → 2026-03-27 · 2 obs
● 2026-03-27 05:24:18
●MXmail.b2fusion.de2015-07-17 → 2026-03-27 · 2 obs
● 2026-03-27 05:24:18
●A185.170.113.2242017-08-28 → 2026-03-27 · 3 obs
● 2017-08-28 17:42:12
● 2026-03-27 05:24:18
○A37.221.194.1592015-07-17 → 2016-12-07 · 4 obs
● 2016-12-07 07:17:50
○ 2017-08-28 17:42:12
○ 2026-03-27 05:24:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| b2fusion.de | third-dns.netcup.net, second-dns.netcup.net, root-dns.netcup.net | - |
✅ Authoritative Response
Server:37.221.199.199
NS records: third-dns.netcup.net, second-dns.netcup.net, root-dns.netcup.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for b2fusion.de (unsigned zone)
⏱️ Timing
Total: 1007ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.170.113.224 |
| NS | 3 | root-dns.netcup.net, second-dns.netcup.net... |
| MX | 1 | mail.b2fusion.de (pri: 10) |
| TXT | 1 | v=spf1 mx -all |
| SOA | 1 | root-dns.netcup.net dnsadmin.netcup.net |
Analysis
Hierarchy
The parent of mail.b2fusion.de is b2fusion.de.
IP Addresses
b2fusion.de points to a single IP address: 185.170.113.224.
Name Servers
b2fusion.de is delegated to three name servers: root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.
b2fusion.de at least partially shares name servers with other domains, for example concep.de, fahrrad-marcks.de, medizinische-sattellehre.de, mastershake.de and 6077.de.
Host names with two IP numbers:
root-dns.netcup.net points to 2a03:4000:0:1::e1e1 and 46.38.225.225
second-dns.netcup.net points to 2a03:4000:2:24b::c7c7 and 37.221.199.199
third-dns.netcup.net points to 2a03:4001:0:106::3f44 and 188.68.63.68
Mail Servers
The mail.b2fusion.de mail server handles b2fusion.de.
mail.b2fusion.de points to a single IP number: 185.233.107.218.