cdko.edu.pl - dns.ninja
cdko.edu.pl
edu.pl
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a-dns.pl ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b-dns.pl ⚠️ Not in parent delegation | ||||||
| NS | d-dns.pl ⚠️ Not in parent delegation | ||||||
| NS | f-dns.pl ⚠️ Not in parent delegation | ||||||
| NS | h-dns.pl ⚠️ Not in parent delegation | ||||||
| NS | j-dns.pl ⚠️ Not in parent delegation | ||||||
| SOA | a-dns.pldnsmaster@nask.pl serial=1783924261 | ||||||
rank #238244 globally
rank #1714 in the tld
WOT: SAFE (79/100)
MX for
cdko.edu.pl |
Subdomains
www.cdko.edu.pl |
Same first word
Similar names
DNS History
15 records (6 active, 9 former)
●NSdns.smarthost.pl2026-03-08 → 2026-07-13 · 3 obs
● 2026-03-08 02:58:42
● 2026-07-13 14:52:38
●NSdns2.smarthost.pl2026-03-08 → 2026-07-13 · 3 obs
● 2026-03-08 02:58:42
● 2026-07-13 14:52:38
●NSdns3.smarthost.pl2026-03-08 → 2026-07-13 · 3 obs
● 2026-03-08 02:58:42
● 2026-07-13 14:52:38
○NSdnsh.poczta.fm2015-07-20 → 2015-07-20 · 3 obs
○ 2015-11-20 00:15:38
○ 2026-07-13 14:52:38
○NSns1.strefa.pl2015-11-20 → 2017-04-19 · 5 obs
● 2015-11-20 00:15:38
● 2017-04-19 04:46:10
○ 2026-03-08 02:58:42
○ 2026-07-13 14:52:38
○NSns2.strefa.pl2015-11-20 → 2017-04-19 · 5 obs
● 2015-11-20 00:15:38
● 2017-04-19 04:46:10
○ 2026-03-08 02:58:42
○ 2026-07-13 14:52:38
○NSns3.strefa.pl2015-11-20 → 2017-04-19 · 5 obs
● 2015-11-20 00:15:38
● 2017-04-19 04:46:10
○ 2026-03-08 02:58:42
○ 2026-07-13 14:52:38
○NSnsh.interia.pl2015-07-20 → 2015-07-20 · 3 obs
○ 2015-11-20 00:15:38
○ 2026-07-13 14:52:38
●MXcdko.edu.pl2026-03-08 → 2026-07-13 · 3 obs
● 2026-03-08 02:58:42
● 2026-07-13 14:52:38
○MXmx.strefa.interia.pl2015-07-20 → 2015-07-20 · 3 obs
○ 2015-11-20 00:15:38
○ 2026-07-13 14:52:38
○MXstrefa.home-whs.pl2015-11-20 → 2017-04-19 · 5 obs
● 2015-11-20 00:15:38
● 2017-04-19 04:46:10
○ 2026-03-08 02:58:42
○ 2026-07-13 14:52:38
●A2001:678:63c:0:9:5bd3:dc3a:12026-03-08 → 2026-07-13 · 3 obs
● 2026-03-08 02:58:42
● 2026-07-13 14:52:38
○A217.74.66.1832015-07-20 → 2015-07-20 · 3 obs
○ 2015-11-20 00:15:38
○ 2026-07-13 14:52:38
○A46.41.144.572015-11-20 → 2017-04-19 · 5 obs
● 2015-11-20 00:15:38
● 2017-04-19 04:46:10
○ 2026-03-08 02:58:42
○ 2026-07-13 14:52:38
●A91.211.222.1552026-03-08 → 2026-07-13 · 3 obs
● 2026-03-08 02:58:42
● 2026-07-13 14:52:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| pl | h-dns.pl, a-dns.pl, d-dns.pl, b-dns.pl... | - |
| cdko.edu.pl | dns2.smarthost.pl, dns.smarthost.pl, dns3.smarthost.pl | - |
✅ Authoritative Response
Server:51.91.27.195
NS records: dns2.smarthost.pl, dns.smarthost.pl, dns3.smarthost.pl
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cdko.edu.pl (unsigned zone)
⏱️ Timing
Total: 1111ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 91.211.222.155 |
| AAAA | 1 | 2001:678:63c:0:9:5bd3:dc3a:1 |
| NS | 3 | dns2.smarthost.pl, dns.smarthost.pl... |
| MX | 1 | cdko.edu.pl (pri: 0) |
| TXT | 1 | v=spf1 ip4:91.211.220.58 ip4:91.211.222. |
| SOA | 1 | dns.smarthost.pl sysadmin.smarthost.pl |
Analysis
Hierarchy
The domain www.cdko.edu.pl falls under the parent cdko.edu.pl.
Mail Server Role
cdko.edu.pl handles its own mail, functioning as its own mail server.
IP Addresses
cdko.edu.pl points to the IP addresses 91.211.222.155 and 2001:678:63c:0:9:5bd3:dc3a:1
Two other host names, along with _dc-mx.371dc3bda308.mojasiatkowka.pl, elektroefekt.com.pl and mad-chem.pl, also share IP numbers with cdko.edu.pl.
Name Servers
cdko.edu.pl has three name servers — dns2.smarthost.pl, dns3.smarthost.pl and dns.smarthost.pl.
At least some of cdko.edu.pl's name servers are shared with other domains, for example gumiplast.com.pl, adma.com.pl, kowbydg.smarthost.pl and two more.
Each of dns2.smarthost.pl, dns3.smarthost.pl and dns.smarthost.pl points to two IP numbers. dns2.smarthost.pl points to 193.93.88.10 and 2001:678:63c:0:9:c15d:580a:1. dns3.smarthost.pl points to 51.91.27.195 and 2001:41d0:203:58c3:0:335b:1bc3:1. dns.smarthost.pl points to 91.211.220.10 and 2001:678:63c:0:9:5bd3:dc0a:1.
Mail Servers
cdko.edu.pl is served by just one mail server: cdko.edu.pl.
cdko.edu.pl directs to two IP numbers, 91.211.222.155 and 2001:678:63c:0:9:5bd3:dc3a:1.