init.cz - robtex.com
init.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2a00:4b40:aaaa:2005::6🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32 | ||||||
| A | 37.9.175.164🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.175.0/24 | ||||||
| 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 | mx10.active24.cz ⭐ | ||||||
| A | 2a00:4b40:aaaa:2101:45:13:137:85🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32 | ||||||
| A | 45.13.137.85🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24 | ||||||
| PTR | mx10.active24.cz | ||||||
| MX | mx20.active24.cz(100) | ||||||
| A | 2a00:4b40:aaaa:2101:45:13:137:86🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32 | ||||||
| A | 45.13.137.86🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24 | ||||||
| PTR | mx20.active24.cz | ||||||
| TXT | v=spf1 a mx include:_spf.websupport.cz -all | ||||||
| SOA | ns1.websupport.czadmin@websupport.cz serial=1775727381 | ||||||
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=1775929633 | ||||||
Same first word
Similar names
DNS History
15 records (7 active, 8 former)
○NSns1.regzone.cz2015-08-20 → 2026-03-26 · 4 obs
● 2026-03-26 05:53:36
○ 2026-04-11 18:16:20
○ 2026-04-11 18:16:22
○NSns1.regzone.de2015-08-20 → 2026-03-26 · 4 obs
● 2026-03-26 05:53:36
○ 2026-04-11 18:16:20
○ 2026-04-11 18:16:22
○NSns1.regzone.info2015-08-20 → 2026-03-26 · 4 obs
● 2026-03-26 05:53:36
○ 2026-04-11 18:16:20
○ 2026-04-11 18:16:22
●NSns1.websupport.cz2026-04-11 → 2026-04-11 · 3 obs
● 2026-04-11 18:16:20
● 2026-04-11 18:16:22
●NSns2.websupport.cz2026-04-11 → 2026-04-11 · 3 obs
● 2026-04-11 18:16:20
● 2026-04-11 18:16:22
●NSns3.websupport.eu2026-04-11 → 2026-04-11 · 3 obs
● 2026-04-11 18:16:20
● 2026-04-11 18:16:22
○MX10mx.zoner.com2015-08-20 → 2026-03-26 · 4 obs
● 2026-03-26 05:53:36
○ 2026-04-11 18:16:20
○ 2026-04-11 18:16:22
○MX15mx.zoner.com2015-08-20 → 2026-03-26 · 4 obs
● 2026-03-26 05:53:36
○ 2026-04-11 18:16:20
○ 2026-04-11 18:16:22
●MXmx10.active24.cz2026-04-11 → 2026-04-11 · 3 obs
● 2026-04-11 18:16:20
● 2026-04-11 18:16:22
●MXmx20.active24.cz2026-04-11 → 2026-04-11 · 3 obs
● 2026-04-11 18:16:20
● 2026-04-11 18:16:22
○MXrelay.zoner.com2015-08-20 → 2026-03-26 · 4 obs
● 2026-03-26 05:53:36
○ 2026-04-11 18:16:20
○ 2026-04-11 18:16:22
○A217.198.116.1882015-08-20 → 2026-03-26 · 4 obs
● 2026-03-26 05:53:36
○ 2026-04-11 18:16:20
○ 2026-04-11 18:16:22
○A2a00:19a0:3:74:0:d9c6:74bc:12020-12-19 → 2026-03-26 · 5 obs
● 2020-12-19 03:51:40
● 2026-03-26 05:53:36
○ 2026-04-11 18:16:20
○ 2026-04-11 18:16:22
●A2a00:4b40:aaaa:2005::62026-04-11 → 2026-04-11 · 3 obs
● 2026-04-11 18:16:20
● 2026-04-11 18:16:22
●A37.9.175.1642026-04-11 → 2026-04-11 · 3 obs
● 2026-04-11 18:16:20
● 2026-04-11 18:16:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| init.cz | 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: 1435ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.9.175.164 |
| AAAA | 1 | 2a00:4b40:aaaa:2005::6 |
| NS | 3 | ns1.websupport.cz, ns2.websupport.cz... |
| MX | 2 | mx10.active24.cz (pri: 10), mx20.active24.cz (pri: 100) |
| TXT | 1 | v=spf1 a mx include:_spf.websupport.cz - |
| SOA | 1 | ns1.websupport.cz admin.websupport.cz |
Analysis
IP Addresses
init.cz points to two IP numbers: 2a00:4b40:aaaa:2005::6 and 37.9.175.164.
Other host names, for instance www.48.cz, oxa.cz, pension-mencl.cz, sta-servis.cz and oxos.cz share IP numbers with init.cz.
Name Servers
init.cz is delegated to three name servers: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.
init.cz at least partially shares its name servers with other domains, for instance equitychambers.org.uk, elopart.de, dialab.cz, izoterm.cz and europeum.org.
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
Two mail servers mx10.active24.cz and mx20.active24.cz handle init.cz.
init.cz uses the same mail server setup as other domains such as sterky.eu, polaroide.com, janbosko.cz, key-service.cz and cservis.cz.
init.cz shares some mail servers with other domains at least partially, for example aperto.cz.
Host names with two IP numbers: mx10.active24.cz points to 2a00:4b40:aaaa:2101:45:13:137:85 and 45.13.137.85; mx20.active24.cz points to 2a00:4b40:aaaa:2101:45:13:137:86 and 45.13.137.86