mx.ioe.cz - robtex.com
mx.ioe.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 85.235.147.102🇮🇹 ARUBA-ASN85.235.128.0/19 | ||||||
| PTR | mx.ioe.cz | ||||||
ioe.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 81.91.86.14🇨🇿 WEB4U81.91.80.0/21 | ||||||
| NS | ns2.web4u.cz ⭐ | ||||||
| NS | ns.web4u.cz | ||||||
| MX | mx.ioe.cz ⭐ | ||||||
| TXT | v=spf1 mx ip4: 85.235.147.102 -all | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2025-07-11 #1 | ||||||
PTR for
MX for
Same first word
Similar names
DNS History
1 record (1 active, 0 former)
●A85.235.147.1022026-06-27 → 2026-07-25 · 2 obs
● 2026-06-27 13:19:42
● 2026-07-25 09:11:50
● 2026-07-25 09:11:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| ioe.cz | ns.web4u.cz, ns2.web4u.cz | 4 records |
✅ Authoritative Response
Server:85.207.53.12
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1145ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 85.235.147.102 |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns.web4u.cz, ns.web4u.cz, ns2.web4u.cz...)
Analysis
Mail Server Role
Mail for ioe.cz is routed through the mail server mx.ioe.cz.
IP Addresses
mx.ioe.cz has exactly one IP address — 85.235.147.102.