ustrice.cz - robtex.com
ustrice.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:28:ca:112::1:2496🇨🇿 SuperNetwork2a01:28::/32 s.r.o. | ||||||
| PTR | jba05.vas-server.cz | ||||||
| A | 37.235.104.252🇨🇿 SuperNetwork37.235.96.0/20 s.r.o. | ||||||
| NS | ns.grdns.cz ⭐ | ||||||
| A | 2001:15e8:101:1::c268🇨🇿 INTERNET-CZ2001:15e8::/32 | ||||||
| PTR | ns.grdns.cz | ||||||
| A | 81.2.194.104🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s. | ||||||
| PTR | ns.grdns.cz | ||||||
| NS | ns.grdns.it | ||||||
| A | 2a00:6d41:2:1::7🇮🇹 ARUBA-ASN2a00:6d41::/32 Aruba S.p.A. IPv6 Network | ||||||
| PTR | ns.grdns.it | ||||||
| A | 95.110.254.167🇮🇹 ARUBA-ASN95.110.192.0/18 Aruba S.p.A. Network | ||||||
| PTR | ns.grdns.it | ||||||
| MX | mail.clearomizery.cz ⭐ | ||||||
| SOA | ns.grdns.czadmin@forpsi.com 2026-03-12 #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=1784510240 | ||||||
Same first word
ustrice.cz |
Similar names
DNS History
13 records (5 active, 8 former)
○NSczns2.aziendeitalia.com2020-03-05 → 2020-03-05 · 4 obs
● 2020-03-05 13:06:02
○ 2026-06-13 07:33:48
○ 2026-07-20 02:07:18
●NSns.grdns.cz2026-06-13 → 2026-07-20 · 3 obs
● 2026-06-13 07:33:48
● 2026-07-20 02:07:18
●NSns.grdns.it2026-06-13 → 2026-07-20 · 3 obs
● 2026-06-13 07:33:48
● 2026-07-20 02:07:18
○NSns1.dreamhost.com2015-07-14 → 2016-02-27 · 4 obs
● 2016-02-27 09:49:20
○ 2020-03-05 13:06:02
○ 2026-07-20 02:07:18
○NSns1.hostingsolutions.cz2020-03-05 → 2020-03-05 · 4 obs
● 2020-03-05 13:06:02
○ 2026-06-13 07:33:48
○ 2026-07-20 02:07:18
○NSns2.dreamhost.com2015-07-14 → 2016-02-27 · 4 obs
● 2016-02-27 09:49:20
○ 2020-03-05 13:06:02
○ 2026-07-20 02:07:18
○NSns3.dreamhost.com2015-07-14 → 2016-02-27 · 4 obs
● 2016-02-27 09:49:20
○ 2020-03-05 13:06:02
○ 2026-07-20 02:07:18
●MXmail.clearomizery.cz2026-06-13 → 2026-07-20 · 3 obs
● 2026-06-13 07:33:48
● 2026-07-20 02:07:18
○MXmail.ustrice.cz2020-03-05 → 2020-03-05 · 3 obs
○ 2026-06-13 07:33:48
○ 2026-07-20 02:07:18
○A173.236.190.372015-07-14 → 2016-02-27 · 4 obs
● 2016-02-27 09:49:20
○ 2020-03-05 13:06:02
○ 2026-07-20 02:07:18
○A176.227.168.912020-03-05 → 2020-03-05 · 4 obs
● 2020-03-05 13:06:02
○ 2026-06-13 07:33:48
○ 2026-07-20 02:07:18
●A2a01:28:ca:112::1:24962026-06-13 → 2026-07-20 · 3 obs
● 2026-06-13 07:33:48
● 2026-07-20 02:07:18
●A37.235.104.2522026-06-13 → 2026-07-20 · 3 obs
● 2026-06-13 07:33:48
● 2026-07-20 02:07:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | d.ns.nic.cz, b.ns.nic.cz, a.ns.nic.cz, c.ns.nic.cz | - |
| ustrice.cz | ns.grdns.cz, ns.grdns.it | 2 records |
✅ Authoritative Response
Server:95.110.254.167
NS records: ns.grdns.cz, ns.grdns.it
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ustrice.cz (unsigned zone)
⏱️ Timing
Total: 1197ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.235.104.252 |
| AAAA | 1 | 2a01:28:ca:112::1:2496 |
| NS | 2 | ns.grdns.cz, ns.grdns.it |
| MX | 1 | mail.clearomizery.cz (pri: 10) |
| SOA | 1 | ns.grdns.cz admin.forpsi.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns.grdns.cz, ns.grdns.cz)
Analysis
IP Addresses
ustrice.cz directs to two IP numbers, 37.235.104.252 and 2a01:28:ca:112::1:2496
visen.cz, plastove-ploty.com, tresen.cz plus two other host names have IP numbers in common with ustrice.cz.
Name Servers
DNS delegation for ustrice.cz points to two name servers: ns.grdns.cz and ns.grdns.it.
The name server configuration of ustrice.cz is shared with other domains, for instance darkelf.eu, unimatrixone.cz, zivnobanka.cz and two others.
ns.grdns.cz directs to 81.2.194.104 and 2001:15e8:101:1::c268. ns.grdns.it directs to 95.110.254.167 and 2a00:6d41:2:1::7. Each host name carries two IP addresses.
Mail Servers
ustrice.cz uses one mail server — mail.clearomizery.cz.
The mail server configuration of ustrice.cz is identical to that of other domains, for example visen.cz and tresen.cz.