drestav.cz - robtex.com
drestav.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 81.91.84.24🇨🇿 WEB4U81.91.80.0/21 | ||||||
| PTR | docker4.uvm.cz | ||||||
| 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 | exmail.svetit.cz ⭐ | ||||||
| A | 90.183.52.117🇨🇿 O2-CZECH-REPUBLIC90.183.0.0/16 | ||||||
| PTR | exmail.svetit.cz | ||||||
| MX | sirmufvirt.svetit.cz(20) | ||||||
| MX | galmufvirt.svetit.cz(30) | ||||||
| A | 90.183.52.120🇨🇿 O2-CZECH-REPUBLIC90.183.0.0/16 | ||||||
| PTR | exmail.svetit.cz | ||||||
| TXT | google-site-verification=riEQalBZ_3EQFFS5Z8RqPZEtKQUMbzQa1bZfGNI_6d0 | ||||||
| TXT | v=spf1 mx a a:exmail.svetit.cz a:sirmufvirt.svetit.cz a:galmufvirt.svetit.cz ... | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2025-10-16 #0 | ||||||
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=1778795234 | ||||||
Same first word
drestav.cz |
Similar names
DNS History
11 records (6 active, 5 former)
●MXexmail.svetit.cz2026-05-01 → 2026-05-14 · 3 obs
● 2026-05-01 08:01:56
● 2026-05-14 22:33:24
●MXgalmufvirt.svetit.cz2026-05-01 → 2026-05-14 · 3 obs
● 2026-05-01 08:01:56
● 2026-05-14 22:33:24
○MXmail.drestav.cz2015-07-14 → 2017-03-20 · 4 obs
● 2017-03-20 22:45:42
○ 2026-05-01 08:01:56
○ 2026-05-14 22:33:24
●MXsirmufvirt.svetit.cz2026-05-01 → 2026-05-14 · 3 obs
● 2026-05-01 08:01:56
● 2026-05-14 22:33:24
○A2001:1568::122015-07-14 → 2016-07-14 · 4 obs
● 2016-07-14 13:04:34
○ 2017-03-20 22:45:42
○ 2026-05-14 22:33:24
○A2001:1568::132017-03-20 → 2017-03-20 · 4 obs
● 2017-03-20 22:45:42
○ 2026-05-01 08:01:56
○ 2026-05-14 22:33:24
●A81.91.84.242026-05-01 → 2026-05-14 · 3 obs
● 2026-05-01 08:01:56
● 2026-05-14 22:33:24
○A81.91.86.122015-07-14 → 2016-07-14 · 4 obs
● 2016-07-14 13:04:34
○ 2017-03-20 22:45:42
○ 2026-05-14 22:33:24
○A81.91.86.132017-03-20 → 2017-03-20 · 4 obs
● 2017-03-20 22:45:42
○ 2026-05-01 08:01:56
○ 2026-05-14 22:33:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz | - |
| drestav.cz | ns.web4u.cz, ns2.web4u.cz | 4 records |
✅ Authoritative Response
Server:85.207.53.12
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1076ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.91.84.24 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 3 | exmail.svetit.cz (pri: 10), sirmufvirt.svetit.cz (pri: 20)... |
| TXT | 2 | google-site-verification=riEQalBZ_3EQFFS, v=spf1 mx a a:exmail.svetit.cz a:sirmufv |
| 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
drestav.cz resolves to one IP number: 81.91.84.24.
Other host names, for instance vetkom.cz, tgs.cz, www.reservanto.cz, femont-mb.cz and reservanto.cz share IP numbers with drestav.cz.
Name Servers
drestav.cz's delegation uses two name servers: ns2.web4u.cz and ns.web4u.cz.
drestav.cz uses the same name server setup as other domains, such as choco-cafe.cz, jadranovo.cz, ucetniporadce.cz, ecesko.eu and best-czech-spa.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
Three mail servers handle drestav.cz: exmail.svetit.cz, galmufvirt.svetit.cz and sirmufvirt.svetit.cz.
drestav.cz shares at least some mail servers with other domains, for example pharmexon.com, scentrum.eu, akjs.cz, atlasconcorde.cz and namaleruzi.cz.
These mail servers are often used together with the mail servers hal.svetit.cz.
Host names with a single IP address: exmail.svetit.cz points to 90.183.52.117; galmufvirt.svetit.cz points to 90.183.52.120.