youritguy.cz - robtex.com
youritguy.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2a10:d840::aaaa:22🇨🇿 MAZEL_BIZ_AS2a10:d840::/29 | ||||||
| PTR | ae.mazel.biz | ||||||
| A | 193.34.80.22🇨🇿 MAZEL_BIZ_AS193.34.80.0/24 | ||||||
| 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 | a.mazel.biz ⭐ | ||||||
| TXT | v=spf1 +mx +firma.kekorenum.com -all | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2025-05-08 #3 | ||||||
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=1774700235 | ||||||
Subdomains
mon.youritguy.cz |
Same first word
DNS History
11 records (5 active, 6 former)
●MXa.mazel.biz2026-03-11 → 2026-03-28 · 3 obs
● 2026-03-11 02:33:38
● 2026-03-28 12:27:36
○MXa.youritguy.cz2017-01-13 → 2018-01-06 · 5 obs
● 2017-01-13 22:13:44
● 2018-01-06 01:23:30
○ 2026-03-11 02:33:38
○ 2026-03-28 12:27:36
○MXmon.youritguy.cz2015-07-03 → 2016-04-29 · 4 obs
● 2016-04-29 01:18:12
○ 2017-01-13 22:13:44
○ 2026-03-28 12:27:36
●A193.34.80.222026-03-11 → 2026-03-28 · 3 obs
● 2026-03-11 02:33:38
● 2026-03-28 12:27:36
○A2001:41d0:8:1771::12017-01-13 → 2018-01-06 · 5 obs
● 2017-01-13 22:13:44
● 2018-01-06 01:23:30
○ 2026-03-11 02:33:38
○ 2026-03-28 12:27:36
○A2a02:25b0:aaaa:aaaa:1159:5170:1758:12016-02-07 → 2016-04-29 · 5 obs
● 2016-02-07 14:55:14
● 2016-04-29 01:18:12
○ 2017-01-13 22:13:44
○ 2026-03-28 12:27:36
●A2a10:d840::aaaa:222026-03-11 → 2026-03-28 · 3 obs
● 2026-03-11 02:33:38
● 2026-03-28 12:27:36
○A46.36.37.1562015-07-03 → 2016-04-29 · 4 obs
● 2016-04-29 01:18:12
○ 2017-01-13 22:13:44
○ 2026-03-28 12:27:36
○A51.254.148.172017-01-13 → 2018-01-06 · 5 obs
● 2017-01-13 22:13:44
● 2018-01-06 01:23:30
○ 2026-03-11 02:33:38
○ 2026-03-28 12:27:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz | - |
| youritguy.cz | ns2.web4u.cz, ns.web4u.cz | 4 records |
✅ Authoritative Response
Server:85.207.53.12
NS records: ns2.web4u.cz, ns.web4u.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1022ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 193.34.80.22 |
| AAAA | 1 | 2a10:d840::aaaa:22 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 1 | a.mazel.biz (pri: 10) |
| TXT | 1 | v=spf1 +mx +firma.kekorenum.com -all |
| 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
Hierarchy
youritguy.cz is the parent of mon.youritguy.cz.
IP Addresses
youritguy.cz points to two IPs: 2a10:d840::aaaa:22 and 193.34.80.22.
Other host names including aa.mazel.biz, lucanik.cz, ae.mazel.biz, s001.mazel.biz and kekorenum.com share IP numbers with youritguy.cz.
Name Servers
youritguy.cz's delegation uses two name servers, ns2.web4u.cz and ns.web4u.cz.
youritguy.cz shares the same name server setup as other domains, for example pc-forum.cz, pazdernik.cz, pletivo.cz, wa-iot-dmp.com and bellesfleurs.cz.
Host names with two IPs:
ns2.web4u.cz points to: 2a02:a40:100:28ff::12 and 85.207.53.12
ns.web4u.cz points to: 2001:1568:fd::241 and 185.14.224.241
Mail Servers
youritguy.cz is handled by a single mail server, a.mazel.biz.