nullmx.castrool.com - robtex.com
nullmx.castrool.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a00:4b40:aaaa:2011::5🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32 | ||||||
| A | 37.9.175.211🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.175.0/24 | ||||||
castrool.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a00:4b40:aaaa:2011::5🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32 | ||||||
| A | 37.9.175.211🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.175.0/24 | ||||||
| NS | ns1.websupport.cz ⭐ | ||||||
| NS | ns2.websupport.cz | ||||||
| NS | ns3.websupport.eu | ||||||
| MX | mx10.active24.cz ⭐ | ||||||
| MX | mx20.active24.cz(100) | ||||||
| TXT | v=spf1 a mx include:_spf.websupport.cz -all | ||||||
| SOA | ns1.websupport.czadmin@websupport.cz serial=1767788115 | ||||||
Same first word
Similar names
DNS History
2 records (2 active, 0 former)
●A2a00:4b40:aaaa:2011::52026-02-22 → 2026-03-24 · 2 obs
● 2026-02-22 18:42:14
● 2026-03-24 20:13:26
● 2026-03-24 20:13:26
●A37.9.175.2112026-02-22 → 2026-03-24 · 2 obs
● 2026-02-22 18:42:14
● 2026-03-24 20:13:26
● 2026-03-24 20:13:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| castrool.com | ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu | - |
✅ Authoritative Response
Server:45.10.97.13
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: 73ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.9.175.211 |
| AAAA | 1 | 2a00:4b40:aaaa:2011::5 |
Analysis
IP Addresses
nullmx.castrool.com points to two IP numbers: 2a00:4b40:aaaa:2011::5 and 37.9.175.211.
Other host names, for instance cotashon.cz, stromy.cz, linux.zshm.cz, mismas.org and al(0x666170)t.com share IP numbers with nullmx.castrool.com.