xtf.cz - robtex.com
xtf.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2a01:4f8:c015:6df3::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| A | 91.98.82.205🇮🇷 Hetzner91.98.0.0/16 HETZNER-DC | ||||||
| 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.zemarov.org ⭐ | ||||||
| A | 2a01:4f8:c015:6df3::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| A | 91.98.82.205🇮🇷 Hetzner91.98.0.0/16 HETZNER-DC | ||||||
| PTR | static.205.82.98.91.clients.your-server.de | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2026-06-14 #8 | ||||||
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=1785187039 | ||||||
Same first word
xtf.us |
xtf.ca |
xtf.co.za |
xtf.co |
xtf.ru |
xtf.com |
xtf.de |
xtf.info |
xtf.org |
xtf.nl |
xtf.cn |
xtf.cz |
xtf.es |
xtf.net |
xtf.it |
xtf.in |
xtf.org.cn |
Similar names
DNS History
5 records (5 active, 0 former)
●MXmail.zemarov.org2026-06-24 → 2026-07-27 · 2 obs
● 2026-07-27 22:14:20
●A2a01:4f8:c015:6df3::12026-06-24 → 2026-07-27 · 2 obs
● 2026-07-27 22:14:20
●A91.98.82.2052026-06-24 → 2026-07-27 · 2 obs
● 2026-07-27 22:14:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz | - |
| xtf.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: 1304ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 91.98.82.205 |
| AAAA | 1 | 2a01:4f8:c015:6df3::1 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 1 | mail.zemarov.org (pri: 10) |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns.web4u.cz, ns.web4u.cz, ns2.web4u.cz...)
Analysis
IP Addresses
xtf.cz points to the IP addresses 91.98.82.205 and 2a01:4f8:c015:6df3::1
Other host names share IP numbers with xtf.cz; mail.zemarov.org is one such example.
Name Servers
xtf.cz is served by two delegated name servers, ns2.web4u.cz and ns.web4u.cz.
xtf.cz has the same name server delegation as a number of other domains, such as ameitec.com, pokojovetermostaty.cz, taboryakrouzky.com 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
xtf.cz routes its mail through a single mail server, mail.zemarov.org.
mail.zemarov.org carries two IP numbers: 91.98.82.205 and 2a01:4f8:c015:6df3::1.