utility.cz - robtex.com
utility.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2001:67c:24f4:c405::1:4🇨🇿 ASBESTNETCZ2001:67c:24f4:8000::/49 | ||||||
| PTR | wh-srv-004.best-hosting.cz | ||||||
| A | 194.8.253.229🇨🇿 ASBESTNETCZ194.8.252.0/23 BEST-NET route | ||||||
| NS | ns1.websupport.cz ⭐ | ||||||
| A | 2a10:bbc0::11🇨🇿 ACTIVE24-AS2a10:bbc0::/32 | ||||||
| PTR | ns1.websupport.eu | ||||||
| A | 45.10.97.11🇨🇿 ACTIVE24-AS45.10.97.0/24 | ||||||
| PTR | ns1.websupport.eu | ||||||
| NS | ns2.websupport.cz | ||||||
| A | 2a02:250:3::12🇸🇪 ACTIVE24-AS2a02:250:3::/48 | ||||||
| PTR | ns2.websupport.eu | ||||||
| A | 185.71.159.12🇸🇪 ACTIVE24-AS185.71.159.0/24 | ||||||
| PTR | ns2.websupport.eu | ||||||
| NS | ns3.websupport.eu | ||||||
| A | 2a10:bbc0::13🇨🇿 ACTIVE24-AS2a10:bbc0::/32 | ||||||
| PTR | ns3.websupport.eu | ||||||
| A | 45.10.97.13🇨🇿 ACTIVE24-AS45.10.97.0/24 | ||||||
| PTR | ns3.websupport.eu | ||||||
| MX | mail.best-hosting.cz ⭐ | ||||||
| A | 2001:67c:24f4:c002::5:1🇨🇿 ASBESTNETCZ2001:67c:24f4:8000::/49 | ||||||
| PTR | mail.best-hosting.cz | ||||||
| A | 194.8.253.5🇨🇿 ASBESTNETCZ194.8.252.0/23 BEST-NET route | ||||||
| PTR | mail.best-hosting.cz | ||||||
| SOA | ns1.websupport.czadmin@websupport.cz serial=1767824128 | ||||||
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=1776205034 | ||||||
Same first word
Similar names
DNS History
10 records (6 active, 4 former)
○NSns1.best-hosting.cz2015-06-27 → 2017-10-07 · 4 obs
● 2017-10-07 01:54:08
○ 2026-04-06 07:49:50
○ 2026-04-14 22:29:50
●NSns1.websupport.cz2026-04-06 → 2026-04-14 · 3 obs
● 2026-04-06 07:49:50
● 2026-04-14 22:29:50
○NSns2.best-hosting.cz2015-06-27 → 2017-10-07 · 4 obs
● 2017-10-07 01:54:08
○ 2026-04-06 07:49:50
○ 2026-04-14 22:29:50
●NSns2.websupport.cz2026-04-06 → 2026-04-14 · 3 obs
● 2026-04-06 07:49:50
● 2026-04-14 22:29:50
○NSns3.best-hosting.cz2015-06-27 → 2017-10-07 · 4 obs
● 2017-10-07 01:54:08
○ 2026-04-06 07:49:50
○ 2026-04-14 22:29:50
●NSns3.websupport.eu2026-04-06 → 2026-04-14 · 3 obs
● 2026-04-06 07:49:50
● 2026-04-14 22:29:50
●MXmail.best-hosting.cz2015-06-27 → 2026-04-14 · 2 obs
● 2026-04-14 22:29:50
●A194.8.253.2292015-06-27 → 2026-04-14 · 2 obs
● 2026-04-14 22:29:50
○A2001:67c:24f4:be::52015-06-27 → 2016-12-04 · 4 obs
● 2016-12-04 05:11:52
○ 2017-10-07 01:54:08
○ 2026-04-14 22:29:50
●A2001:67c:24f4:c405::1:42017-10-07 → 2026-04-14 · 3 obs
● 2017-10-07 01:54:08
● 2026-04-14 22:29:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| utility.cz | ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu | - |
✅ Authoritative Response
Server:45.10.97.13
NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1120ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 194.8.253.229 |
| AAAA | 1 | 2001:67c:24f4:c405::1:4 |
| NS | 3 | ns1.websupport.cz, ns2.websupport.cz... |
| MX | 1 | mail.best-hosting.cz (pri: 10) |
| SOA | 1 | ns1.websupport.cz admin.websupport.cz |
Analysis
IP Addresses
utility.cz resolves to two IP numbers: 2001:67c:24f4:c405::1:4 and 194.8.253.229.
other host names including pension-anna.cz, orinhk.cz, c13-b2b-prod-fa-web-lb.tipyanabidky.cz, polymar.cz and room(0x787878).com share IP numbers with utility.cz.
Name Servers
utility.cz is delegated to three name servers ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.
utility.cz at least partially shares name servers with other domains, for instance rimex.cz, nalogi.cz, paninarodigital.com, agiren.com and mmaa.cz.
Host names with two IP numbers:
ns1.websupport.cz points to: 2a10:bbc0::11 and 45.10.97.11.
ns2.websupport.cz points to: 2a02:250:3::12 and 185.71.159.12.
ns3.websupport.eu points to: 2a10:bbc0::13 and 45.10.97.13.
Mail Servers
utility.cz is handled by a single mail server, mail.best-hosting.cz.
utility.cz shares the same mail server setup as other domains, for instance stuchlik.info, best-net.cz, herbalhills.eu, harmim.cz and kahn.cz.
mail.best-hosting.cz resolves to two IP numbers: 2001:67c:24f4:c002::5:1 and 194.8.253.5.