mailadmin.electra.cz - robtex.com
mailadmin.electra.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.91.87.10🇨🇿 WEB4U81.91.80.0/21 | ||||||
| PTR | mail.web4u.cz | ||||||
electra.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 81.91.86.10🇨🇿 WEB4U81.91.80.0/21 | ||||||
| NS | ns2.web4u.cz ⭐ | ||||||
| NS | ns.web4u.cz | ||||||
| MX | mx1.mailchannels.net ⭐ | ||||||
| MX | mx2.mailchannels.net ⭐ | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2025-05-04 #0 | ||||||
Same first word
Similar names
DNS History
1 record (1 active, 0 former)
●A81.91.87.102015-06-13 → 2026-05-11 · 2 obs
● 2015-06-13 06:00:52
● 2026-05-11 14:09:28
● 2026-05-11 14:09:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | 8 records |
| electra.cz | ns.web4u.cz, ns2.web4u.cz | 4 records |
✅ Authoritative Response
Server:185.14.224.241
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1353ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.91.87.10 |
📌 Glue Records Collected
Total: 12
In-bailiwick: 8 (a.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz...)
Out-of-bailiwick: 4 (ns.web4u.cz, ns2.web4u.cz, ns.web4u.cz...)
Analysis
IP Addresses
mailadmin.electra.cz points to IP number 81.91.87.10.
For instance, other host names mail.machinemat.cz, mail.linberg.cz, mail.exttra.cz, mail.wellco.cz and mail.lomeet.com share IP numbers with mailadmin.electra.cz.