theoschule.de - robtex.com
theoschule.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 | ||||||
| SOA | root-dns.netcup.netdnsadmin@netcup.net 2023-05-22 #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=1774478356 | ||||||
Subdomains
mail.theoschule.de |
Same first word
theoschule.de |
Similar names
DNS History
8 records (4 active, 4 former)
○NSns5.nameserverservice.de2015-06-30 → 2017-03-19 · 3 obs
● 2017-03-19 05:26:24
○ 2026-03-25 23:10:06
○NSns6.nameserverservice.de2015-06-30 → 2017-03-19 · 3 obs
● 2017-03-19 05:26:24
○ 2026-03-25 23:10:06
●NSroot-dns.netcup.net2026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 23:10:06
●NSsecond-dns.netcup.net2026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 23:10:06
●NSthird-dns.netcup.net2026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 23:10:06
○MXmail.theoschule.de2015-06-30 → 2017-03-19 · 3 obs
● 2017-03-19 05:26:24
○ 2026-03-25 23:10:06
●A46.38.243.2342026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 23:10:06
○A62.75.141.1922015-06-30 → 2017-03-19 · 3 obs
● 2017-03-19 05:26:24
○ 2026-03-25 23:10:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | f.nic.de, z.nic.de, a.nic.de | - |
| theoschule.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 theoschule.de (unsigned zone)
⏱️ Timing
Total: 969ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 46.38.243.234 |
| NS | 3 | third-dns.netcup.net, root-dns.netcup.net... |
| SOA | 1 | root-dns.netcup.net dnsadmin.netcup.net |
Analysis
Hierarchy
The parent of mail.theoschule.de is theoschule.de.
IP Addresses
theoschule.de points to a single IP number: 46.38.243.234.
Other host names, for instance werwilltesten.de, mx0.fipro.de, mail.nicesrv.de, mail.cakelab.ch and mail.bildung-fuer-mich.de share IP numbers with theoschule.de.
Name Servers
The domain theoschule.de is delegated to three name servers: root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.
theoschule.de shares name servers with other domains at least partially, for instance erot.de, heizkraftwerk-pforzheim.de, lion-of-judah.de, rjtv.de and eaglemeetstiger.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