3a4.de - robtex.com
3a4.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a03:4000:61:26e8::17:6956🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH | ||||||
| A | 188.68.47.155🇩🇪 netcup-AS188.68.47.0/24 | ||||||
| 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.3a4.de ⭐ | ||||||
| A | 188.68.47.157🇩🇪 netcup-AS188.68.47.0/24 | ||||||
| PTR | mx2f9d.netcup.net | ||||||
| MX | mx2f9d.netcup.net(50) | ||||||
| A | 188.68.47.157🇩🇪 netcup-AS188.68.47.0/24 | ||||||
| PTR | mx2f9d.netcup.net | ||||||
| TXT | v=spf1 mx a include:_spf.webhosting.systems ~all | ||||||
| SOA | root-dns.netcup.netdnsadmin@netcup.net 2022-12-28 #15 | ||||||
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=1773553752 | ||||||
Subdomains
mail.3a4.de |
Same first word
Similar names
DNS History
7 records (7 active, 0 former)
●NSroot-dns.netcup.net2026-03-10 → 2026-03-18 · 2 obs
● 2026-03-18 19:45:20
●NSsecond-dns.netcup.net2026-03-10 → 2026-03-18 · 2 obs
● 2026-03-18 19:45:20
●NSthird-dns.netcup.net2026-03-10 → 2026-03-18 · 2 obs
● 2026-03-18 19:45:20
●MXmail.3a4.de2026-03-10 → 2026-03-18 · 2 obs
● 2026-03-18 19:45:20
●MXmx2f9d.netcup.net2026-03-10 → 2026-03-18 · 2 obs
● 2026-03-18 19:45:20
●A188.68.47.1552026-03-10 → 2026-03-18 · 2 obs
● 2026-03-18 19:45:20
●A2a03:4000:61:26e8::17:69562026-03-10 → 2026-03-18 · 2 obs
● 2026-03-18 19:45:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| 3a4.de | root-dns.netcup.net, third-dns.netcup.net, second-dns.netcup.net | - |
✅ Authoritative Response
Server: 46.38.225.225
NS records: root-dns.netcup.net, third-dns.netcup.net, second-dns.netcup.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 3a4.de (unsigned zone)
⏱️ Timing
Total: 1186ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 188.68.47.155 |
| AAAA | 1 | 2a03:4000:61:26e8::17:6956 |
| NS | 3 | root-dns.netcup.net, third-dns.netcup.net... |
| MX | 2 | mx2f9d.netcup.net (pri: 50), mail.3a4.de (pri: 10) |
| TXT | 1 | v=spf1 mx a include:_spf.webhosting.syst |
| SOA | 1 | root-dns.netcup.net dnsadmin.netcup.net |
Analysis
Hierarchy
3a4.de is a parent of mail.3a4.de.
IP Addresses
3a4.de points to two IP numbers: 2a03:4000:61:26e8::17:6956 and 188.68.47.155.
Other host names such as ottomag.com, sw-elite.de, fallso.photo.rabatt-sammler.de, www.minecraft.name and versoa.net share IP numbers with 3a4.de.
Name Servers
3a4.de is delegated to three name servers: root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.
At least part of the name servers for 3a4.de are shared with other domains, for instance kommunales-immobilien-management.de, der-parasit.de, allforliving.de, listringhaus.net and rick-neubert.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
3a4.de is handled by two mail servers: mail.3a4.de and mx2f9d.netcup.net.
3a4.de shares at least some mail servers with other domains, for example krim.me, krim.dev, shuttlepars.com, g1t.de and alexherzog.de.
Host names sharing a single IP: mail.3a4.de and mx2f9d.netcup.net point to 188.68.47.157.