cf-data.cz - robtex.com
cf-data.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 91.221.149.14🇨🇿 COMFEEL91.221.148.0/23 IPv4 addresses | ||||||
| PTR | hosting.cf-data.cz | ||||||
| NS | ns1.regzone.cz ⭐ | ||||||
| A | 2a00:19a0:3:71:0:d9c6:710a:1🇨🇿 ZONER-AS2a00:19a0::/32 ZONER-IPV6-NET | ||||||
| PTR | ns1.regzone.cz | ||||||
| A | 217.198.113.10🇨🇿 ZONER-AS217.198.112.0/20 ZONER-NET | ||||||
| PTR | ns1.regzone.cz | ||||||
| NS | ns1.regzone.de | ||||||
| A | 2600:3c02::f03c:91ff:fedb:a6e7🇺🇸 AKAMAI-LINODE-AP2600:3c02::/32 Akamai Technologies | ||||||
| PTR | ns1.regzone.de | ||||||
| A | 23.92.29.43🇺🇸 AKAMAI-LINODE-AP23.92.28.0/22 Akamai Technologies | ||||||
| PTR | ns1.regzone.de | ||||||
| NS | ns1.regzone.info | ||||||
| A | 2001:1528:147::10🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network | ||||||
| PTR | ns1.regzone.info | ||||||
| A | 81.0.233.10🇨🇿 CASABLANCA-AS81.0.232.0/21 Casablanca INT | ||||||
| PTR | ns1.regzone.info | ||||||
| MX | ns1.cf-data.cz ⭐ | ||||||
| A | 91.221.149.14🇨🇿 COMFEEL91.221.148.0/23 IPv4 addresses | ||||||
| PTR | hosting.cf-data.cz | ||||||
| SOA | ns1.regzone.czadministrator@czechia.cz 2026-02-20 #6 | ||||||
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=1774885640 | ||||||
Subdomains
ns1.cf-data.cz |
hosting.cf-data.cz |
webhosting.cf-data.cz |
Same first word
cf-data.cz |
Similar names
DNS History
6 records (5 active, 1 former)
●NSns1.regzone.cz2015-08-17 → 2026-03-30 · 2 obs
● 2026-03-30 16:17:56
●NSns1.regzone.de2015-08-17 → 2026-03-30 · 2 obs
● 2026-03-30 16:17:56
●NSns1.regzone.info2015-08-17 → 2026-03-30 · 2 obs
● 2026-03-30 16:17:56
●MXns1.cf-data.cz2015-08-17 → 2026-03-30 · 2 obs
● 2026-03-30 16:17:56
○A91.221.149.132015-08-17 → 2016-12-19 · 4 obs
● 2016-12-19 12:11:44
○ 2017-01-26 22:21:54
○ 2026-03-30 16:17:56
●A91.221.149.142017-01-26 → 2026-03-30 · 3 obs
● 2017-01-26 22:21:54
● 2026-03-30 16:17:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| cf-data.cz | ns1.regzone.info, ns1.regzone.de, ns1.regzone.cz | 2 records |
✅ Authoritative Response
Server:81.0.233.10
NS records: ns1.regzone.info, ns1.regzone.de, ns1.regzone.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1202ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 91.221.149.14 |
| NS | 3 | ns1.regzone.cz, ns1.regzone.de... |
| MX | 1 | ns1.cf-data.cz (pri: 10) |
| SOA | 1 | ns1.regzone.cz administrator.czechia.cz |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.regzone.cz, ns1.regzone.cz)
Analysis
Hierarchy
cf-data.cz is the parent of ns1.cf-data.cz, hosting.cf-data.cz and webhosting.cf-data.cz.
IP Addresses
cf-data.cz resolves to one IP number: 91.221.149.14.
Other host names, for instance ns1.cf-data.cz, share IP numbers with cf-data.cz.
Name Servers
cf-data.cz is delegated to three name servers ns1.regzone.cz, ns1.regzone.de and ns1.regzone.info.
cf-data.cz at least partially shares name servers with other domains, for instance essens.email, topacademy.cz, rosco.cz, koreni.eu and parkovanivbrne.cz.
Host names with two IP numbers:
ns1.regzone.cz points to: 2a00:19a0:3:71:0:d9c6:710a:1 and 217.198.113.10.
ns1.regzone.de points to: 2600:3c02::f03c:91ff:fedb:a6e7 and 23.92.29.43.
ns1.regzone.info points to: 2001:1528:147::10 and 81.0.233.10.
Mail Servers
cf-data.cz is handled by a single mail server, ns1.cf-data.cz.
ns1.cf-data.cz resolves to IP 91.221.149.14.