cottbus-tu.net - robtex.com
cottbus-tu.net
| DNSSEC | ⚠️ Not signed | ||||||
| NS | deneb.dfn.de ⭐ | ||||||
| A | 2001:638:800:1::9🇩🇪 DFN2001:638::/32 -V6-AGG1 | ||||||
| PTR | deneb.dfn.de | ||||||
| A | 192.76.176.9🇺🇸 DFN192.76.176.0/24 ZPL-NET | ||||||
| PTR | deneb.dfn.de | ||||||
| NS | dns-1.dfn.de | ||||||
| A | 2001:638:d:b101::1🇩🇪 DFN2001:638::/32 -V6-AGG1 | ||||||
| PTR | dns-1.dfn.de | ||||||
| A | 193.174.75.50🇩🇪 DFN193.174.0.0/15 -AGG-1 | ||||||
| PTR | dns-1.dfn.de | ||||||
| NS | dns-2.dfn.de | ||||||
| A | 2001:638:d:b102::1🇩🇪 DFN2001:638::/32 -V6-AGG1 | ||||||
| PTR | dns-2.dfn.de | ||||||
| A | 193.174.75.54🇩🇪 DFN193.174.0.0/15 -AGG-1 | ||||||
| PTR | dns-2.dfn.de | ||||||
| NS | dns-3.dfn.de | ||||||
| A | 2001:638:d:b103::1🇩🇪 DFN2001:638::/32 -V6-AGG1 | ||||||
| PTR | dns-3.dfn.de | ||||||
| A | 193.174.75.58🇩🇪 DFN193.174.0.0/15 -AGG-1 | ||||||
| PTR | dns-3.dfn.de | ||||||
| SOA | deneb.dfn.dehostmaster@dfn.de 2016-10-18 #0 | ||||||
net
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1776151167 | ||||||
Same first word
cottbus-tu.com |
cottbus-tu.net |
Similar names
DNS History
5 records (4 active, 1 former)
●NSdeneb.dfn.de2015-07-02 → 2026-04-14 · 5 obs
● 2016-04-26 04:01:10
○ 2016-12-25 00:41:32
● 2018-09-12 10:31:56
● 2026-04-14 07:25:58
●NSdns-1.dfn.de2016-12-25 → 2026-04-14 · 3 obs
● 2016-12-25 00:41:32
● 2026-04-14 07:25:58
●NSdns-2.dfn.de2016-12-25 → 2026-04-14 · 3 obs
● 2016-12-25 00:41:32
● 2026-04-14 07:25:58
●NSdns-3.dfn.de2016-12-25 → 2026-04-14 · 3 obs
● 2016-12-25 00:41:32
● 2026-04-14 07:25:58
○NSws-was.win-ip.dfn.de2015-07-02 → 2016-04-26 · 4 obs
● 2016-04-26 04:01:10
○ 2016-12-25 00:41:32
○ 2026-04-14 07:25:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | l.gtld-servers.net, g.gtld-servers.net, d.gtld-servers.net, i.gtld-servers.net... | - |
| cottbus-tu.net | dns-2.dfn.de, dns-1.dfn.de, dns-3.dfn.de | - |
✅ Authoritative Response
Server:193.174.75.58
NS records: dns-2.dfn.de, dns-1.dfn.de, dns-3.dfn.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cottbus-tu.net (unsigned zone)
⏱️ Timing
Total: 874ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | dns-1.dfn.de, dns-3.dfn.de... |
| SOA | 1 | deneb.dfn.de hostmaster.dfn.de |
Analysis
Name Servers
cottbus-tu.net is delegated to four name servers: deneb.dfn.de, dns-1.dfn.de, dns-2.dfn.de and dns-3.dfn.de.
cottbus-tu.net at least partially shares name servers with other domains, for instance gdi.cms.rwth-aachen.de, fw.mb.uni-siegen.de, horizontal-europeanization.eu, 82.76.141.in-addr.arpa and 202.175.193.in-addr.arpa.
These name servers are commonly used alongside zs1.rz.rwth-aachen.de, zs2.rz.rwth-aachen.de, adns1.zih.tu-dresden.de, adns2.zih.tu-dresden.de, pdns1.zih.tu-dresden.de, rzdnsprime.rz.tu-bs.de, rzdnssecond.rz.tu-bs.de, dnsisp1.dwd.de, dnsisp2.dwd.de and news.uni-leipzig.de.
Host names with two IP numbers: deneb.dfn.de points to 2001:638:800:1::9 and 192.76.176.9; dns-1.dfn.de points to 2001:638:d:b101::1 and 193.174.75.50; dns-2.dfn.de points to 2001:638:d:b102::1 and 193.174.75.54; dns-3.dfn.de points to 2001:638:d:b103::1 and 193.174.75.58.