c-tutorials.de - robtex.com
c-tutorials.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 138.201.245.249🇩🇪 Hetzner138.201.0.0/16 HETZNER-RZ-BLK-ERX4 | ||||||
| PTR | static.249.245.201.138.clients.your-server.de | ||||||
| NS | ns1.domainoffensive.de ⭐ | ||||||
| A | 2001:67c:1bc::21🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast | ||||||
| PTR | ns1.mainns.de | ||||||
| A | 192.174.68.21🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net | ||||||
| PTR | ns1.mainns.de | ||||||
| NS | ns2.domainoffensive.de | ||||||
| A | 2001:67c:10b8::21🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net | ||||||
| PTR | ns2.mainns.eu | ||||||
| A | 176.97.158.21🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net | ||||||
| PTR | ns2.mainns.eu | ||||||
| NS | ns3.domainoffensive.de | ||||||
| A | 2001:67c:1bc::20🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast | ||||||
| PTR | ns3.mainns.net | ||||||
| A | 192.174.68.20🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net | ||||||
| PTR | ns3.mainns.net | ||||||
| MX | mail.c-tutorials.de ⭐ | ||||||
| A | 138.201.245.249🇩🇪 Hetzner138.201.0.0/16 HETZNER-RZ-BLK-ERX4 | ||||||
| PTR | static.249.245.201.138.clients.your-server.de | ||||||
| SOA | ns1.domainoffensive.deinfo@domains.resellerinterface.de serial=1684540800 | ||||||
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=1774589583 | ||||||
Subdomains
mail.c-tutorials.de |
Same first word
c-tutorials.de |
Similar names
DNS History
6 records (5 active, 1 former)
●NSns1.domainoffensive.de2015-08-14 → 2026-03-27 · 2 obs
● 2026-03-27 05:59:54
●NSns2.domainoffensive.de2015-08-14 → 2026-03-27 · 2 obs
● 2026-03-27 05:59:54
●NSns3.domainoffensive.de2015-12-03 → 2026-03-27 · 3 obs
● 2015-12-03 17:33:48
● 2026-03-27 05:59:54
●MXmail.c-tutorials.de2015-08-14 → 2026-03-27 · 2 obs
● 2026-03-27 05:59:54
●A138.201.245.2492026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 05:59:54
○A78.47.192.712015-08-14 → 2017-05-27 · 3 obs
● 2017-05-27 22:21:24
○ 2026-03-27 05:59:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| c-tutorials.de | ns1.domainoffensive.de, ns3.domainoffensive.de, ns2.domainoffensive.de | - |
✅ Authoritative Response
Server:176.97.158.21
NS records: ns1.domainoffensive.de, ns3.domainoffensive.de, ns2.domainoffensive.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for c-tutorials.de (unsigned zone)
⏱️ Timing
Total: 754ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 138.201.245.249 |
| NS | 3 | ns3.domainoffensive.de, ns1.domainoffensive.de... |
| MX | 1 | mail.c-tutorials.de (pri: 0) |
| SOA | 1 | ns1.domainoffensive.de info.domains.rese |
Analysis
Hierarchy
c-tutorials.de is the parent of mail.c-tutorials.de.
IP Addresses
c-tutorials.de resolves to a single IP: 138.201.245.249.
Other host names share IP numbers with c-tutorials.de; for instance mail.c-tutorials.de.
Name Servers
c-tutorials.de delegates to three name servers: ns1.domainoffensive.de, ns2.domainoffensive.de and ns3.domainoffensive.de.
c-tutorials.de shares some name servers with other domains, for example immopreisradar.de, deoohnealuminium.de, lapacho-tee.de, red4power.com and hotend.de.
These name servers are commonly used together with ns2.domainoffensive.eu and ns3.domainoffensive.net.
Host names with two IP numbers:
ns1.domainoffensive.de: 2001:67c:1bc::21 and 192.174.68.21
ns2.domainoffensive.de: 2001:67c:10b8::21 and 176.97.158.21
ns3.domainoffensive.de: 2001:67c:1bc::20 and 192.174.68.20
Mail Servers
c-tutorials.de is handled by a single mail server, mail.c-tutorials.de.
Host name mail.c-tutorials.de points to IP 138.201.245.249.