hostmaster.firstnet.cz - robtex.com
hostmaster.firstnet.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a02:2b88:2:1::6623:1🇨🇿 WEDOS2a02:2b88::/32 Internet, a.s. | ||||||
| PTR | platan.realitari.cz | ||||||
| A | 46.28.110.118🇨🇿 WEDOS46.28.104.0/21 Internet, a.s. | ||||||
firstnet.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2a02:2b88:2:1::6623:1🇨🇿 WEDOS2a02:2b88::/32 Internet, a.s. | ||||||
| A | 46.28.110.118🇨🇿 WEDOS46.28.104.0/21 Internet, a.s. | ||||||
| NS | ns1.websupport.cz ⭐ | ||||||
| NS | ns2.websupport.cz | ||||||
| NS | ns3.websupport.eu | ||||||
| MX | platan.realitari.cz ⭐ | ||||||
| TXT | v=spf1 a +mx a:platan.realitari.cz -all | ||||||
| TXT | spf2.0/pra a mx include:_sid.websupport.sk ?all | ||||||
| TXT | google-site-verification=gZhxMx1ta3p7FDAf0CSVgN3kMaoYr39Z0nVWDF5fO4I | ||||||
| SOA | ns1.websupport.czadmin@websupport.cz serial=1750235887 | ||||||
Same first word
Similar names
DNS History
4 records (2 active, 2 former)
●A2a02:2b88:2:1::6623:12026-06-17 → 2026-07-25 · 3 obs
○ 2016-09-10 08:40:52
● 2026-06-17 03:39:06
● 2026-07-25 17:03:40
● 2026-06-17 03:39:06
● 2026-07-25 17:03:40
●A46.28.110.1182026-06-17 → 2026-07-25 · 3 obs
○ 2016-09-10 08:40:52
● 2026-06-17 03:39:06
● 2026-07-25 17:03:40
● 2026-06-17 03:39:06
● 2026-07-25 17:03:40
○A81.2.209.472015-08-20 → 2016-09-10 · 4 obs
● 2015-08-20 06:05:24
● 2016-09-10 08:40:52
○ 2026-06-17 03:39:06
○ 2026-07-25 17:03:40
● 2016-09-10 08:40:52
○ 2026-06-17 03:39:06
○ 2026-07-25 17:03:40
○CNAMEfuller.firstnet.cz2015-08-20 → 2016-09-10 · 4 obs
● 2015-08-20 06:05:24
● 2016-09-10 08:40:52
○ 2026-06-17 03:39:06
○ 2026-07-25 17:03:40
● 2016-09-10 08:40:52
○ 2026-06-17 03:39:06
○ 2026-07-25 17:03:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| firstnet.cz | ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu | - |
✅ Authoritative Response
Server:185.71.159.12
NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 952ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 46.28.110.118 |
| AAAA | 1 | 2a02:2b88:2:1::6623:1 |
Analysis
IP Addresses
hostmaster.firstnet.cz points to the IP addresses 46.28.110.118 and 2a02:2b88:2:1::6623:1
Two other host names, along with zakladani.eu, akmatejicek.cz and realitnicentrum.com, also share IP numbers with hostmaster.firstnet.cz.