mail.cerrum.com - robtex.com
mail.cerrum.com
cerrum.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.91.86.11🇨🇿 WEB4U81.91.80.0/21 | ||||||
| NS | ns2.web4u.cz ⭐ | ||||||
| NS | ns.web4u.cz | ||||||
| MX | mx.web4u.cz ⭐ | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2009-05-05 #1 | ||||||
Previously MX for
Same first word
Similar names
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, c.gtld-servers.net, j.gtld-servers.net, g.gtld-servers.net... | - |
| cerrum.com | ns.web4u.cz, ns2.web4u.cz | - |
✅ Authoritative Response
Server:85.207.53.12
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cerrum.com (unsigned zone)
⏱️ Timing
Total: 4512ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.91.87.10 |
Analysis
IP Addresses
mail.cerrum.com has exactly one IP address — 81.91.87.10.
mail.common-systems.com, mail.auditel.cz, mail.appleonline.eu plus two other host names have IP numbers in common with mail.cerrum.com.