fireman.cz - robtex.com
fireman.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:1568:d::187🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | m187.server4u.cz | ||||||
| A | 81.91.85.35🇨🇿 WEB4U81.91.80.0/21 | ||||||
| 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 | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2017-04-05 #1 | ||||||
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=1785444439 | ||||||
Same first word
Similar names
DNS History
14 records (4 active, 10 former)
●NSns.web4u.cz2017-10-28 → 2026-07-30 · 3 obs
● 2017-10-28 17:28:08
● 2026-07-30 21:34:12
○NSns.wedos.com2015-07-01 → 2016-11-27 · 4 obs
● 2016-11-27 07:04:54
○ 2017-10-28 17:28:08
○ 2026-07-30 21:34:12
○NSns.wedos.cz2015-07-01 → 2016-11-27 · 4 obs
● 2016-11-27 07:04:54
○ 2017-10-28 17:28:08
○ 2026-07-30 21:34:12
○NSns.wedos.eu2015-07-01 → 2016-11-27 · 4 obs
● 2016-11-27 07:04:54
○ 2017-10-28 17:28:08
○ 2026-07-30 21:34:12
○NSns.wedos.net2015-07-01 → 2016-11-27 · 4 obs
● 2016-11-27 07:04:54
○ 2017-10-28 17:28:08
○ 2026-07-30 21:34:12
●NSns2.web4u.cz2017-10-28 → 2026-07-30 · 3 obs
● 2017-10-28 17:28:08
● 2026-07-30 21:34:12
○MXalt1.aspmx.l.google.com2015-07-01 → 2016-11-27 · 4 obs
● 2016-11-27 07:04:54
○ 2017-10-28 17:28:08
○ 2026-07-30 21:34:12
○MXalt2.aspmx.l.google.com2015-07-01 → 2016-11-27 · 4 obs
● 2016-11-27 07:04:54
○ 2017-10-28 17:28:08
○ 2026-07-30 21:34:12
○MXalt3.aspmx.l.google.com2015-07-01 → 2016-11-27 · 4 obs
● 2016-11-27 07:04:54
○ 2017-10-28 17:28:08
○ 2026-07-30 21:34:12
○MXalt4.aspmx.l.google.com2015-07-01 → 2016-11-27 · 4 obs
● 2016-11-27 07:04:54
○ 2017-10-28 17:28:08
○ 2026-07-30 21:34:12
○MXaspmx.l.google.com2015-07-01 → 2016-11-27 · 4 obs
● 2016-11-27 07:04:54
○ 2017-10-28 17:28:08
○ 2026-07-30 21:34:12
○A193.19.179.292015-07-01 → 2016-11-27 · 4 obs
● 2016-11-27 07:04:54
○ 2017-10-28 17:28:08
○ 2026-07-30 21:34:12
●A2001:1568:d::1872017-10-28 → 2026-07-30 · 3 obs
● 2017-10-28 17:28:08
● 2026-07-30 21:34:12
●A81.91.85.352017-10-28 → 2026-07-30 · 3 obs
● 2017-10-28 17:28:08
● 2026-07-30 21:34:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | c.ns.nic.cz, d.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz | - |
| fireman.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: 1040ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.91.85.35 |
| AAAA | 1 | 2001:1568:d::187 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns2.web4u.cz, ns.web4u.cz, ns2.web4u.cz...)
Analysis
IP Addresses
fireman.cz has two IP addresses: 81.91.85.35 and 2001:1568:d::187
hvezdazivota.cz, hasicarna.cz, pozary.cz plus two other host names have IP numbers in common with fireman.cz.
Name Servers
DNS delegation for fireman.cz points to two name servers: ns2.web4u.cz and ns.web4u.cz.
The name server configuration of fireman.cz is shared with other domains, for instance bht.cz, netm.cz, eposid.eu and two others.
ns2.web4u.cz directs to 85.207.53.12 and 2a02:a40:100:28ff::12. ns.web4u.cz directs to 185.14.224.241 and 2001:1568:fd::241. Each host name carries two IP addresses.