rdbt.cz - robtex.com
rdbt.cz
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=1774491438 | ||||||
Subdomains
mail.rdbt.cz |
Same first word
Similar names
DNS History
8 records (8 active, 0 former)
●NSns.gransy.com2026-03-17 → 2026-03-26 · 2 obs
● 2026-03-26 02:22:26
●NSns2.gransy.com2026-03-17 → 2026-03-26 · 2 obs
● 2026-03-26 02:22:26
●NSns3.gransy.com2026-03-17 → 2026-03-26 · 2 obs
● 2026-03-26 02:22:26
●NSns4.gransy.com2026-03-17 → 2026-03-26 · 2 obs
● 2026-03-26 02:22:26
●NSns5.gransy.com2026-03-17 → 2026-03-26 · 2 obs
● 2026-03-26 02:22:26
●MXmail.rdbt.cz2026-03-17 → 2026-03-26 · 2 obs
● 2026-03-26 02:22:26
●MXmail.wp-hosting.eu2026-03-17 → 2026-03-26 · 2 obs
● 2026-03-26 02:22:26
●A88.86.121.1342026-03-17 → 2026-03-26 · 2 obs
● 2026-03-26 02:22:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, d.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz | - |
| rdbt.cz | ns.gransy.com, ns2.gransy.com, ns3.gransy.com, ns4.gransy.com... | - |
✅ Authoritative Response
Server:46.21.100.103
NS records: ns.gransy.com, ns2.gransy.com, ns3.gransy.com, ns4.gransy.com, ns5.gransy.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rdbt.cz (unsigned zone)
⏱️ Timing
Total: 1594ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 88.86.121.134 |
| NS | 5 | ns5.gransy.com, ns3.gransy.com... |
| MX | 2 | mail.rdbt.cz (pri: 5), mail.wp-hosting.eu (pri: 10) |
| SOA | 1 | ns.gransy.com root.gransy.com |
Analysis
Hierarchy
The parent of mail.rdbt.cz is rdbt.cz.
IP Addresses
rdbt.cz points to a single IP: 88.86.121.134.
Other host names, for instance blog4design.com, bitumax.cz, fotonautmini.com, saunyabazeny.cz and neit.cz share IP numbers with rdbt.cz.
Name Servers
rdbt.cz is delegated to five name servers: ns2.gransy.com, ns3.gransy.com, ns4.gransy.com, ns5.gransy.com and ns.gransy.com.
rdbt.cz partially shares name servers with other domains; examples include fme.sk, shopycrm.com, anccomponents.cz, mayoral.cz and conf.se.
These name servers are commonly used with ns2.internetserver.cz, ns.internetserver.cz and ns3.dns-station.net.
Five IP numbers:
ns2.gransy.com points to: 2001:19f0:6801:474:5400:1ff:fec5:8efb, 2001:19f0:7401:81e0:5400:1ff:fec5:8ef6, 95.179.192.121, 217.16.185.221 and 217.69.4.49
ns3.gransy.com points to: 2a02:750:7::2e7, 2a02:750:8::32, 46.21.100.103, 77.78.126.35 and 109.74.7.71
Four IP numbers:
ns4.gransy.com points to: 2001:19f0:5401:69b:5400:1ff:fec5:8f3f, 2a00:1a28:2010:1::89, 66.42.94.136 and 80.67.7.209
ns.gransy.com points to: 2001:19f0:5001:1caf:5400:1ff:fec5:8d50, 45.76.90.43, 77.78.104.149 and 95.179.136.180
Two IP numbers:
ns5.gransy.com points to: 2a02:750:5::538 and 31.192.227.223
Mail Servers
rdbt.cz is handled by two mail servers: mail.rdbt.cz and mail.wp-hosting.eu.
rdbt.cz shares some mail servers with other domains, at least partially, such as danielnytra.cz, trm.cz, ecstatic.life, penzion-zerotin.cz and schody-check.cz.
These mail servers are often used with the mail servers mail.wp-hosting.cz.
Host names with one IP number
Host name mail.rdbt.cz points to 88.86.121.144
Host name mail.wp-hosting.eu points to 88.86.121.144
Host names that point to 88.86.121.144: mail.rdbt.cz and mail.wp-hosting.eu