masterdc.info - dns.ninja
masterdc.info
| 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 | ||||||
| PTR | ns1.master.cz | ||||||
| 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 | ||||||
| PTR | ns2.master.cz | ||||||
| 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 | ||||||
| PTR | ns3.master.cz | ||||||
| SOA | ns1.master.cznoc@master.cz 2023-04-04 #3 | ||||||
info
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.info.afilias-nst.info ⭐ | ||||||
| NS | a2.info.afilias-nst.info | ||||||
| NS | b0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | b2.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | c0.info.afilias-nst.info | ||||||
| NS | d0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| SOA | a0.info.afilias-nst.infohostmaster@donuts.email serial=1782638373 | ||||||
Same first word
masterdc.ru |
masterdc.at |
masterdc.co.uk |
masterdc.eu |
masterdc.com |
masterdc.cz |
masterdc.sk |
masterdc.de |
masterdc.org |
masterdc.info |
masterdc.pl |
Similar names
DNS History
5 records (4 active, 1 former)
○A81.31.33.202015-07-04 → 2020-10-11 · 4 obs
● 2020-10-11 06:54:00
○ 2026-02-16 10:53:22
○ 2026-06-28 09:51:08
●A81.31.45.1462026-02-16 → 2026-06-28 · 3 obs
● 2026-02-16 10:53:22
● 2026-06-28 09:51:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| info | a0.info.afilias-nst.info, a2.info.afilias-nst.info, c0.info.afilias-nst.info | - |
| masterdc.info | 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.info (unsigned zone)
⏱️ Timing
Total: 945ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.31.45.146 |
| NS | 3 | ns1.master.cz, ns2.master.cz... |
| SOA | 1 | ns1.master.cz noc.master.cz |
Analysis
IP Addresses
masterdc.info points to a single IP number: 81.31.45.146.
Additional host names — masterdc.co.uk, servernow.sk, www.cbix.cz and two others — share IP numbers with masterdc.info.
Name Servers
DNS for masterdc.info is handled by three authoritative name servers: ns1.master.cz, ns2.master.cz and ns3.master.cz.
masterdc.info has at least partial name server overlap with other domains, such as 194.214.91.in-addr.arpa, 32.31.81.in-addr.arpa, masterinter.net and two others.
These name servers are frequently paired with the name servers ns1.westmaster.com, ns2.westmaster.com, ns1.cloud4data.com and two others.
Three hostnames — ns1.master.cz, ns2.master.cz and ns3.master.cz — each have two IP addresses: ns1.master.cz has 81.31.33.23 and 2a01:430:100:16::2, ns2.master.cz has 81.31.33.6 and 2a01:430:200:b::2, and ns3.master.cz has 82.209.3.134 and 2a00:ca8:8000::c0de.