code9.pl - dns.ninja
code9.pl
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.kru.pl ⭐ | ||||||
| A | 217.182.200.139🇫🇷 OVH217.182.0.0/16 | ||||||
| PTR | node9.kru.pl | ||||||
| NS | ns2.kru.pl | ||||||
| A | 167.235.156.239🇩🇪 Hetzner167.235.0.0/16 HETZNER-DC | ||||||
| PTR | main1.kru.pl | ||||||
| MX | mail.protonmail.ch ⭐ | ||||||
| A | 176.119.200.128🇨🇭 Proton176.119.200.0/24 | ||||||
| PTR | mail.protonmail.ch | ||||||
| A | 185.70.42.128🇨🇭 Proton185.70.42.0/24 | ||||||
| PTR | mail.protonmail.ch | ||||||
| A | 185.205.70.128🇫🇷 Proton185.205.70.0/24 | ||||||
| PTR | mail.protonmail.ch | ||||||
| MX | mailsec.protonmail.ch(20) | ||||||
| A | 176.119.200.129🇨🇭 Proton176.119.200.0/24 | ||||||
| PTR | mailsec.protonmail.ch | ||||||
| A | 185.70.42.129🇨🇭 Proton185.70.42.0/24 | ||||||
| PTR | mailsec.protonmail.ch | ||||||
| A | 185.205.70.129🇫🇷 Proton185.205.70.0/24 | ||||||
| PTR | mailsec.protonmail.ch | ||||||
| TXT | v=spf1 include:_spf.protonmail.ch ~all | ||||||
| TXT | protonmail-verification=36c155f077f06a763d1e73ed17b3352b06d6575c | ||||||
| SOA | ns1.kru.plhostmaster@code9.pl 2026-07-01 #27 | ||||||
pl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| 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=1785047639 | ||||||
Same first word
code9.rs |
code9.azurewebsites.net |
code9.cn |
code9.de |
code9.s3.amazonaws.com |
code9.in |
code9.com |
code9.tech |
code9.us |
code9.pl |
code9.co.kr |
code9.co.nz |
code9.net |
code9.org |
code9.agency |
code9.eu |
code9.online |
code9.com.au |
Similar names
DNS History
17 records (4 active, 13 former)
○NSdns16.ovh.net2020-01-18 → 2020-01-18 · 4 obs
● 2020-01-18 16:46:40
○ 2026-03-08 00:23:32
○ 2026-07-26 23:03:02
●NSns1.kru.pl2026-03-08 → 2026-07-26 · 3 obs
● 2026-03-08 00:23:32
● 2026-07-26 23:03:02
○NSns16.ovh.net2020-01-18 → 2020-01-18 · 4 obs
● 2020-01-18 16:46:40
○ 2026-03-08 00:23:32
○ 2026-07-26 23:03:02
●NSns2.kru.pl2026-03-08 → 2026-07-26 · 3 obs
● 2026-03-08 00:23:32
● 2026-07-26 23:03:02
○NSns6.az.pl2017-03-20 → 2017-03-20 · 3 obs
○ 2020-01-18 16:46:40
○ 2026-07-26 23:03:02
○NSns7.az.pl2017-03-20 → 2017-03-20 · 3 obs
○ 2020-01-18 16:46:40
○ 2026-07-26 23:03:02
○NSns8.az.pl2017-03-20 → 2017-03-20 · 3 obs
○ 2020-01-18 16:46:40
○ 2026-07-26 23:03:02
○MXmail.code9.pl2026-03-08 → 2026-05-07 · 5 obs
● 2026-03-08 00:23:32
● 2026-05-07 09:25:46
○ 2026-06-03 08:01:56
○ 2026-07-26 23:03:02
●MXmail.protonmail.ch2026-07-26 → 2026-07-26 · 3 obs
● 2026-07-26 23:02:58
● 2026-07-26 23:03:02
●MXmailsec.protonmail.ch2026-07-26 → 2026-07-26 · 3 obs
● 2026-07-26 23:02:58
● 2026-07-26 23:03:02
○MXmx1.mail.ovh.net2020-01-18 → 2020-01-18 · 4 obs
● 2020-01-18 16:46:40
○ 2026-03-08 00:23:32
○ 2026-07-26 23:03:02
○MXmx2.mail.ovh.net2020-01-18 → 2020-01-18 · 4 obs
● 2020-01-18 16:46:40
○ 2026-03-08 00:23:32
○ 2026-07-26 23:03:02
○MXmx3.mail.ovh.net2020-01-18 → 2020-01-18 · 4 obs
● 2020-01-18 16:46:40
○ 2026-03-08 00:23:32
○ 2026-07-26 23:03:02
○MXs04.emailserver.pl2017-03-20 → 2017-03-20 · 3 obs
○ 2020-01-18 16:46:40
○ 2026-07-26 23:03:02
○A146.59.72.962026-03-08 → 2026-05-07 · 5 obs
● 2026-03-08 00:23:32
● 2026-05-07 09:25:46
○ 2026-06-03 08:01:56
○ 2026-07-26 23:03:02
○A178.32.205.962020-01-18 → 2020-01-18 · 4 obs
● 2020-01-18 16:46:40
○ 2026-03-08 00:23:32
○ 2026-07-26 23:03:02
○A46.41.144.92017-03-20 → 2017-03-20 · 3 obs
○ 2020-01-18 16:46:40
○ 2026-07-26 23:03:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| pl | a-dns.pl, h-dns.pl, d-dns.pl, f-dns.pl... | - |
| code9.pl | ns2.kru.pl, ns1.kru.pl | 2 records |
✅ Authoritative Response
Server:217.182.200.139
NS records: ns2.kru.pl, ns1.kru.pl
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for code9.pl (unsigned zone)
⏱️ Timing
Total: 519ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns2.kru.pl, ns1.kru.pl |
| MX | 2 | mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20) |
| TXT | 2 | v=spf1 include:_spf.protonmail.ch ~all, protonmail-verification=36c155f077f06a76 |
| SOA | 1 | ns1.kru.pl hostmaster.code9.pl |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.kru.pl, ns1.kru.pl)
Analysis
Name Servers
code9.pl has two authoritative name servers — ns1.kru.pl and ns2.kru.pl.
The name server configuration of code9.pl is shared with other domains, for instance hello-english.pl, kulam.pl, lokata-bankowa.pl and two others.
Both ns1.kru.pl and ns2.kru.pl have a single IP address each — ns1.kru.pl resolves to 217.182.200.139 while ns2.kru.pl resolves to 167.235.156.239.
Mail Servers
code9.pl uses two mail servers, mail.protonmail.ch and mailsec.protonmail.ch.
The mail server setup of code9.pl matches that of other domains such as aegiswolf.com, elasticswap.org, cleanlegen.de and two others.
At least some of the mail servers used by code9.pl are shared with other domains: keesbrandenburg.nl, mariedahlgren.se, chronologic.network and two others among them.
Both mail.protonmail.ch and mailsec.protonmail.ch point to three IP numbers: mail.protonmail.ch points to 176.119.200.128, 185.70.42.128 and 185.205.70.128, while mailsec.protonmail.ch points to 176.119.200.129, 185.70.42.129 and 185.205.70.129.