kobra.pl - robtex.com
kobra.pl
| DNSSEC | ⚠️ Not signed | ||||||
| A | 193.239.206.248🇵🇱 FORWEB193.239.206.0/23 -NET | ||||||
| PTR | ceres.4web.pl | ||||||
| NS | kobra.pl ⭐ | ||||||
| A | 193.239.206.248🇵🇱 FORWEB193.239.206.0/23 -NET | ||||||
| PTR | ceres.4web.pl | ||||||
| NS | dns.4web.pl ⚠️ Not in zone NS records | ||||||
| A | 194.63.133.2🇵🇱 FORWEB194.63.132.0/22 PL-4WEB-PL | ||||||
| PTR | ns1.4web.pl | ||||||
| NS | dns2.4web.pl ⚠️ Not in zone NS records | ||||||
| A | 194.63.132.120🇵🇱 FORWEB194.63.132.0/22 PL-4WEB-PL | ||||||
| PTR | ns2.4web.pl | ||||||
| NS | ns1.4web.pl ⚠️ Not in parent delegation | ||||||
| A | 194.63.133.2🇵🇱 FORWEB194.63.132.0/22 PL-4WEB-PL | ||||||
| PTR | ns1.4web.pl | ||||||
| NS | ns2.4web.pl ⚠️ Not in parent delegation | ||||||
| A | 194.63.132.120🇵🇱 FORWEB194.63.132.0/22 PL-4WEB-PL | ||||||
| PTR | ns2.4web.pl | ||||||
| MX | poczta.4web.pl ⭐ | ||||||
| A | 193.239.206.242🇵🇱 FORWEB193.239.206.0/23 -NET | ||||||
| PTR | poczta.4web.pl | ||||||
| TXT | v=spf1 include:_spf.4web.pl | ||||||
| SOA | kobra.pldnsadmin@4web.pl 2005-04-04 #11 | ||||||
pl
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a-dns.pl ⭐ | ||||||
| NS | b-dns.pl | ||||||
| NS | d-dns.pl | ||||||
| NS | f-dns.pl | ||||||
| NS | h-dns.pl | ||||||
| NS | j-dns.pl | ||||||
| TXT | ccTLD of Poland | ||||||
| SOA | a-dns.pldnsmaster@nask.pl serial=1783924493 | ||||||
NS for
kobra.pl |
Same first word
Similar names
DNS History
7 records (7 active, 0 former)
●NSkobra.pl2015-06-12 → 2026-07-14 · 2 obs
● 2026-07-14 03:51:02
●NSns1.4web.pl2026-06-11 → 2026-07-14 · 3 obs
● 2026-06-11 10:46:26
● 2026-07-14 03:51:02
●NSns2.4web.pl2026-06-11 → 2026-07-14 · 3 obs
● 2026-06-11 10:46:26
● 2026-07-14 03:51:02
●A193.239.206.2482015-06-12 → 2026-07-14 · 2 obs
● 2026-07-14 03:51:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| pl | a-dns.pl, f-dns.pl, h-dns.pl, b-dns.pl... | - |
| kobra.pl | dns2.4web.pl, dns.4web.pl | - |
✅ Authoritative Response
Server:194.63.133.2
NS records: dns2.4web.pl, dns.4web.pl
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kobra.pl (unsigned zone)
⏱️ Timing
Total: 1179ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 193.239.206.248 |
| NS | 2 | ns1.4web.pl, ns2.4web.pl |
| MX | 1 | poczta.4web.pl (pri: 10) |
| TXT | 1 | v=spf1 include:_spf.4web.pl |
| SOA | 1 | kobra.pl dnsadmin.4web.pl |
Analysis
Name Server Role
kobra.pl has kobra.pl as one of its name servers, making it self-hosted for DNS delegation.
Together with kobra.pl, the hosts dns.4web.pl, dns2.4web.pl and ns1.4web.pl are frequently configured as name servers.
IP Addresses
kobra.pl directs to one IP number, which is 193.239.206.248.
Among the host names that share IP numbers with kobra.pl are berettaserwis.pl, www.swisspol.eu, www.darius.forweb.pl and two others.
Name Servers
DNS for kobra.pl is delegated to five name servers: kobra.pl, dns2.4web.pl, dns.4web.pl and two others.
kobra.pl shares at least some of its name servers with other domains, including 5.175.95.in-addr.arpa, 2.175.95.in-addr.arpa, berettaserwis.pl and two others.
These name servers are routinely co-deployed with the name servers ns2.4web.pl, trilan.pl, bhpplus.pl and two others.
Hosts that resolve to one IP address:
kobra.pl directs to 193.239.206.248.
dns2.4web.pl directs to 194.63.132.120.
dns.4web.pl directs to 194.63.133.2.
ns1.4web.pl directs to 194.63.133.2.
ns2.4web.pl directs to 194.63.132.120.
Host names pointing to 194.63.132.120 IP addresses: dns2.4web.pl and ns2.4web.pl.
Host names pointing to 194.63.133.2 IP addresses: dns.4web.pl and ns1.4web.pl.
Mail Servers
kobra.pl routes its mail through a single mail server, poczta.4web.pl.
kobra.pl has the same mail server arrangement as a number of other domains, for example i-rdi.net, forweb.eu, knz.pl and two more.
poczta.4web.pl has exactly one IP number: 193.239.206.242.