gebauer.cz - robtex.com
gebauer.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 81.91.85.211🇨🇿 WEB4U81.91.80.0/21 | ||||||
| PTR | m137.server4u.cz | ||||||
| NS | ns2.web4u.cz ⭐ | ||||||
| A | 2a02:a40:100:28ff::12🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s. | ||||||
| PTR | ns2.web4u.cz | ||||||
| A | 85.207.53.12🇨🇿 BlueTone-AS85.207.0.0/16 BlueTone-CRa-CZ Fourth address block | ||||||
| PTR | ns2.web4u.cz | ||||||
| NS | ns.web4u.cz | ||||||
| A | 2001:1568:fd::241🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | ns.web4u.cz | ||||||
| A | 185.14.224.241🇨🇿 WEB4U185.14.224.0/23 | ||||||
| PTR | ns.web4u.cz | ||||||
| MX | mail.gebauer.cz ⭐ | ||||||
| A | 81.91.85.211🇨🇿 WEB4U81.91.80.0/21 | ||||||
| PTR | m137.server4u.cz | ||||||
| TXT | v=spf1 ip4:81.91.85.211 ip4:81.91.85.212 include:spf.smartemailing.cz ~all | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2024-02-11 #0 | ||||||
cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.ns.nic.cz ⭐ | ||||||
| NS | b.ns.nic.cz | ||||||
| NS | c.ns.nic.cz | ||||||
| NS | d.ns.nic.cz | ||||||
| SOA | a.ns.nic.czhostmaster@nic.cz serial=1786472241 | ||||||
Subdomains
Same first word
gebauer.cz |
gebauer.dk |
gebauer.media |
gebauer.net |
gebauer.se |
gebauer.services |
gebauer.org |
gebauer.mobi |
gebauer.it |
gebauer.com |
gebauer.ch |
gebauer.cl |
gebauer.tv |
gebauer.hu |
Similar names
DNS History
4 records (4 active, 0 former)
●MXmail.gebauer.cz2015-07-19 → 2026-08-11 · 2 obs
● 2026-08-11 19:39:34
●A81.91.85.2112015-07-19 → 2026-08-11 · 2 obs
● 2026-08-11 19:39:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| gebauer.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: 3115ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.91.85.211 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 1 | mail.gebauer.cz (pri: 10) |
| TXT | 1 | v=spf1 ip4:81.91.85.211 ip4:81.91.85.212 |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns.web4u.cz, ns2.web4u.cz, ns.web4u.cz...)
Analysis
Hierarchy
mail.gebauer.cz and www.gebauer.cz are both subdomains of gebauer.cz.
IP Addresses
gebauer.cz resolves to one IP address: 81.91.85.211.
come.cz, mail.pivorohan.cz, mail.dodamevamvejce.cz and two other host names share IP numbers with gebauer.cz.
Name Servers
gebauer.cz is served by two delegated name servers, ns2.web4u.cz and ns.web4u.cz.
gebauer.cz uses the same name servers as several other domains — among them mihalka.eu, steba.cz, lodeonline.cz and two more.
Each of the two host names carries two IP addresses: ns2.web4u.cz points to 85.207.53.12 and 2a02:a40:100:28ff::12, and ns.web4u.cz points to 185.14.224.241 and 2001:1568:fd::241.
Mail Servers
Mail for gebauer.cz is handled by a single mail server, mail.gebauer.cz.
There is one IP number for mail.gebauer.cz: 81.91.85.211.