data-centrum.net - robtex.com
data-centrum.net
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2a01:5f7:c001::aaaa🇨🇿 SK-TELEKOM2a01:5f7::/32 Network of Coolhousing | ||||||
| A | 91.245.16.10🇨🇿 SK-TELEKOM91.245.16.0/23 Network of Coolhousing | ||||||
| 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 | posta.coolhousing.net ⭐ | ||||||
| A | 2a01:5f0:2::aabb🇨🇿 COOLHOUSING-AS2a01:5f0::/32 Network of Coolhousing | ||||||
| PTR | posta.coolhousing.net | ||||||
| A | 87.236.192.50🇨🇿 COOLHOUSING-AS87.236.192.0/24 Network of Coolhousing | ||||||
| PTR | posta.coolhousing.net | ||||||
| SOA | ns1.websupport.czadmin@websupport.cz serial=1763668391 | ||||||
net
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1777024256 | ||||||
Same first word
data-centrum.net |
DNS History
10 records (6 active, 4 former)
○NSalfa.ns.active24.cz2015-07-13 → 2018-07-19 · 4 obs
● 2018-07-19 23:19:40
○ 2026-04-11 08:08:12
○ 2026-04-24 10:03:58
○NSbeta.ns.active24.cz2015-07-13 → 2018-07-19 · 4 obs
● 2018-07-19 23:19:40
○ 2026-04-11 08:08:12
○ 2026-04-24 10:03:58
●NSns1.websupport.cz2026-04-11 → 2026-04-24 · 3 obs
● 2026-04-11 08:08:12
● 2026-04-24 10:03:58
●NSns2.websupport.cz2026-04-11 → 2026-04-24 · 3 obs
● 2026-04-11 08:08:12
● 2026-04-24 10:03:58
●NSns3.websupport.eu2026-04-11 → 2026-04-24 · 3 obs
● 2026-04-11 08:08:12
● 2026-04-24 10:03:58
○MXmail.data-centrum.net2015-07-13 → 2018-07-19 · 4 obs
● 2018-07-19 23:19:40
○ 2026-04-11 08:08:12
○ 2026-04-24 10:03:58
●MXposta.coolhousing.net2026-04-11 → 2026-04-24 · 3 obs
● 2026-04-11 08:08:12
● 2026-04-24 10:03:58
●A2a01:5f7:c001::aaaa2026-04-11 → 2026-04-24 · 3 obs
● 2026-04-11 08:08:12
● 2026-04-24 10:03:58
○A89.187.142.272015-07-13 → 2018-07-19 · 4 obs
● 2018-07-19 23:19:40
○ 2026-04-11 08:08:12
○ 2026-04-24 10:03:58
●A91.245.16.102026-04-11 → 2026-04-24 · 3 obs
● 2026-04-11 08:08:12
● 2026-04-24 10:03:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| data-centrum.net | ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu | - |
✅ Authoritative Response
Server:45.10.97.11
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: 379ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 91.245.16.10 |
| AAAA | 1 | 2a01:5f7:c001::aaaa |
| NS | 3 | ns1.websupport.cz, ns2.websupport.cz... |
| MX | 1 | posta.coolhousing.net (pri: 1) |
| SOA | 1 | ns1.websupport.cz admin.websupport.cz |
Analysis
IP Addresses
data-centrum.net points to two IPs: 2a01:5f7:c001::aaaa and 91.245.16.10.
Other host names including colhousing.cz, cool-housing.cz, virtualniserverlite.cz, vpslite.cz and coolhousing.be share IP numbers with data-centrum.net.
Name Servers
data-centrum.net is delegated to three name servers: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.
data-centrum.net at least partially shares name servers with other domains, including 4support2u.nl, oilers.cz, skkometapraha.cz, nrc.cz and erozone.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
data-centrum.net is handled by a single mail server, posta.coolhousing.net.
data-centrum.net shares its mail server setup with other domains, including coolhousing.eu, colhousing.net, coolhousing.at, coolhousing.sk and coolhousing.dk.
posta.coolhousing.net points to two IPs: 2a01:5f0:2::aabb and 87.236.192.50.