masterdc.pl - dns.ninja
masterdc.pl
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.31.45.146🇨🇿 MASTER-AS81.31.32.0/20 MASTER-NET-1 | ||||||
| PTR | 81-31-45-146.static.masterinter.net | ||||||
| NS | ns1.master.cz ⭐ | ||||||
| A | 2a01:430:100:16::2🇨🇿 MASTER-AS2a01:430::/32 MASTER-IPV6-1-MAI-CZ | ||||||
| PTR | ns1.master.cz | ||||||
| A | 81.31.33.23🇨🇿 MASTER-AS81.31.32.0/20 MASTER-NET-1 | ||||||
| NS | ns2.master.cz | ||||||
| A | 2a01:430:200:b::2🇨🇿 MASTER-AS2a01:430::/32 MASTER-IPV6-1-MAI-CZ | ||||||
| PTR | ns2.master.cz | ||||||
| A | 81.31.33.6🇨🇿 MASTER-AS81.31.32.0/20 MASTER-NET-1 | ||||||
| NS | ns3.master.cz ⚠️ Not in parent delegation | ||||||
| A | 2a00:ca8:8000::c0de🇨🇿 PODA-AS2a00:ca8::/32 PODA a.s. | ||||||
| PTR | ns3.master.cz | ||||||
| A | 82.209.3.134🇨🇿 PODA-AS82.209.0.0/18 PODA-NET | ||||||
| MX | mail.master.cz ⭐ | ||||||
| A | 2a01:430:100:5c::2🇨🇿 MASTER-AS2a01:430::/32 MASTER-IPV6-1-MAI-CZ | ||||||
| PTR | mail.master.cz | ||||||
| A | 81.31.43.64🇨🇿 MASTER-AS81.31.32.0/20 MASTER-NET-1 | ||||||
| MX | ns3.master.cz(25) | ||||||
| A | 2a00:ca8:8000::c0de🇨🇿 PODA-AS2a00:ca8::/32 PODA a.s. | ||||||
| PTR | ns3.master.cz | ||||||
| A | 82.209.3.134🇨🇿 PODA-AS82.209.0.0/18 PODA-NET | ||||||
| TXT | 8a13583bbbbd7f1778360cae55a3235e | ||||||
| SOA | ns1.master.cznoc@master.cz 2023-04-04 #3 | ||||||
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=1782541934 | ||||||
Same first word
masterdc.info |
masterdc.pl |
masterdc.ru |
masterdc.at |
masterdc.co.uk |
masterdc.eu |
masterdc.com |
masterdc.cz |
masterdc.sk |
masterdc.de |
masterdc.org |
Similar names
DNS History
7 records (6 active, 1 former)
○A81.31.33.202015-08-14 → 2021-05-11 · 4 obs
● 2021-05-11 06:15:08
○ 2026-02-16 10:53:22
○ 2026-06-27 17:28:58
●A81.31.45.1462026-02-16 → 2026-06-27 · 3 obs
● 2026-02-16 10:53:22
● 2026-06-27 17:28:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| pl | f-dns.pl, b-dns.pl, j-dns.pl, h-dns.pl... | - |
| masterdc.pl | ns1.master.cz, ns2.master.cz | - |
✅ Authoritative Response
Server:81.31.33.6
NS records: ns1.master.cz, ns2.master.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for masterdc.pl (unsigned zone)
⏱️ Timing
Total: 715ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.31.45.146 |
| NS | 3 | ns3.master.cz, ns2.master.cz... |
| MX | 2 | mail.master.cz (pri: 10), ns3.master.cz (pri: 25) |
| TXT | 1 | 8a13583bbbbd7f1778360cae55a3235e |
| SOA | 1 | ns1.master.cz noc.master.cz |
Analysis
IP Addresses
masterdc.pl resolves to just one IP address, 81.31.45.146.
Two other host names, along with masterdisc.sk, masterdisk.org and gigahousing.eu, also share IP numbers with masterdc.pl.
Name Servers
masterdc.pl is delegated to three name servers: ns1.master.cz, ns2.master.cz and ns3.master.cz.
There is at least partial name server overlap between masterdc.pl and other domains — 227.167.83.in-addr.arpa, 42.238.178.in-addr.arpa, 146.62.149.in-addr.arpa and two more among them.
These name servers frequently co-occur with the name servers ns1.westmaster.com and ns2.westmaster.com.
ns1.master.cz, ns2.master.cz and ns3.master.cz each resolve to two IP addresses: ns1.master.cz resolves to 81.31.33.23 and 2a01:430:100:16::2; ns2.master.cz resolves to 81.31.33.6 and 2a01:430:200:b::2; ns3.master.cz resolves to 82.209.3.134 and 2a00:ca8:8000::c0de.
Mail Servers
masterdc.pl is served by two mail servers, mail.master.cz and ns3.master.cz.
Among the domains sharing a mail server setup with masterdc.pl are masterdc.de, mastercloud.pl, westmaster.sg and two others.
There is at least a partial MX overlap between masterdc.pl and other domains, including dolni-prim.cz, virtooal.com, okadesign.cz and two others.
These mail servers are routinely seen in conjunction with the mail servers d723.masterinter.net and webhosting.masterinter.net.
Host names that have two IP addresses:
mail.master.cz points to 81.31.43.64 and 2a01:430:100:5c::2.