jrcomputer.pl - dns.ninja
jrcomputer.pl
| DNSSEC | ⚠️ Not signed | ||||||
| A | 136.243.254.121🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3 | ||||||
| PTR | s602.calserver.eu | ||||||
| NS | ns1.cal.pl ⭐ | ||||||
| A | 45.138.106.10🇨🇿 WEDOS-GLOBAL45.138.106.0/24 WEDOS Global | ||||||
| PTR | ns1.cal.pl | ||||||
| NS | ns2.cal.pl | ||||||
| A | 185.8.238.10🇨🇿 WEDOS-GLOBAL185.8.238.0/24 WEDOS Global | ||||||
| PTR | ns2.cal.pl | ||||||
| MX | mail.jrcomputer.pl ⭐ | ||||||
| A | 136.243.254.121🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3 | ||||||
| PTR | s602.calserver.eu | ||||||
| TXT | v=spf1 a mx ip4:167.235.187.71 include:_spf.cal.pl -all | ||||||
| SOA | ns1.cal.plhostmaster@jrcomputer.pl 2025-10-09 #5 | ||||||
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=1786948245 | ||||||
Previously MX for
jrcomputer.pl |
Subdomains
mail.jrcomputer.pl |
Same first word
jrcomputer.com.br |
jrcomputer.pl |
Similar names
DNS History
9 records (4 active, 5 former)
○NSdns.home.pl2015-05-29 → 2018-10-08 · 4 obs
● 2018-10-08 23:18:44
○ 2026-02-15 22:10:58
○ 2026-08-17 08:55:00
○NSdns2.home.pl2015-05-29 → 2018-10-08 · 4 obs
● 2018-10-08 23:18:44
○ 2026-02-15 22:10:58
○ 2026-08-17 08:55:00
○NSdns3.home.pl2015-05-29 → 2018-10-08 · 4 obs
● 2018-10-08 23:18:44
○ 2026-02-15 22:10:58
○ 2026-08-17 08:55:00
●NSns1.cal.pl2026-02-15 → 2026-08-17 · 3 obs
● 2026-02-15 22:10:58
● 2026-08-17 08:55:00
●NSns2.cal.pl2026-02-15 → 2026-08-17 · 3 obs
● 2026-02-15 22:10:58
● 2026-08-17 08:55:00
○MXjrcomputer.pl2015-05-29 → 2018-10-08 · 4 obs
● 2018-10-08 23:18:44
○ 2026-02-15 22:10:58
○ 2026-08-17 08:55:00
●MXmail.jrcomputer.pl2026-02-15 → 2026-08-17 · 3 obs
● 2026-02-15 22:10:58
● 2026-08-17 08:55:00
●A136.243.254.1212026-02-15 → 2026-08-17 · 3 obs
● 2026-02-15 22:10:58
● 2026-08-17 08:55:00
○A79.96.92.612015-05-29 → 2018-10-08 · 4 obs
● 2018-10-08 23:18:44
○ 2026-02-15 22:10:58
○ 2026-08-17 08:55:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| pl | j-dns.pl, d-dns.pl, a-dns.pl, b-dns.pl... | - |
| jrcomputer.pl | ns2.cal.pl, ns1.cal.pl | 2 records |
✅ Authoritative Response
Server:45.138.106.10
NS records: ns2.cal.pl, ns1.cal.pl
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jrcomputer.pl (unsigned zone)
⏱️ Timing
Total: 1283ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 136.243.254.121 |
| NS | 2 | ns1.cal.pl, ns2.cal.pl |
| MX | 1 | mail.jrcomputer.pl (pri: 10) |
| TXT | 1 | v=spf1 a mx ip4:167.235.187.71 include:_ |
| SOA | 1 | ns1.cal.pl hostmaster.jrcomputer.pl |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.cal.pl, ns1.cal.pl)
Analysis
Hierarchy
The domain mail.jrcomputer.pl falls under the parent jrcomputer.pl.
IP Addresses
jrcomputer.pl resolves to one IP address: 136.243.254.121.
mail.trueblue.pl, mail.spala.info.pl, mail.aivento.com and two other host names share IP numbers with jrcomputer.pl.
Name Servers
jrcomputer.pl is delegated to two name servers: ns1.cal.pl and ns2.cal.pl.
jrcomputer.pl uses the same name servers as several other domains — among them rakus.pl, ewd.com.pl, elbet.net.pl and two more.
The name servers for jrcomputer.pl are partially shared with other domains like strellas.com, fabrykafilmowa.pl and cytologiavera.pl
Each of ns1.cal.pl and ns2.cal.pl has one IP address: ns1.cal.pl uses 45.138.106.10 and ns2.cal.pl uses 185.8.238.10.
Mail Servers
Mail for jrcomputer.pl is handled by a single mail server, mail.jrcomputer.pl.
mail.jrcomputer.pl resolves to a single IP number: 136.243.254.121.