opte.cz - robtex.com

opte.cz

DNSSEC⚠️ Not signed
A89.187.196.183🇨🇿 JAW-AS89.187.196.0/23 JAW.cz
PTRnet-13-183.jaw.cz
NSns1.websupport.cz ⭐
A2a10:bbc0::11🇨🇿 ACTIVE24-AS2a10:bbc0::/32
PTRns1.websupport.eu
A45.10.97.11🇨🇿 ACTIVE24-AS45.10.97.0/24
PTRns1.websupport.eu
NSns2.websupport.cz
A2a02:250:3::12🇸🇪 ACTIVE24-AS2a02:250:3::/48
PTRns2.websupport.eu
A185.71.159.12🇸🇪 ACTIVE24-AS185.71.159.0/24
PTRns2.websupport.eu
NSns3.websupport.eu
A2a10:bbc0::13🇨🇿 ACTIVE24-AS2a10:bbc0::/32
PTRns3.websupport.eu
A45.10.97.13🇨🇿 ACTIVE24-AS45.10.97.0/24
PTRns3.websupport.eu
TXTv=spf1 include:_spf.jaw.cz ?all
SOAns1.websupport.czadmin@websupport.cz serial=1775730064

cz

DNSSEC🔒 Signed (DS record present)
NSa.ns.nic.cz ⭐
NSb.ns.nic.cz
NSc.ns.nic.cz
NSd.ns.nic.cz
SOAa.ns.nic.czhostmaster@nic.cz serial=1778528837

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DNS History

4 records (4 active, 0 former)

NSns1.websupport.czns2.websupport.czns3.websupport.euA89.187.196.183
●NSns1.websupport.cz2026-04-19 → 2026-05-11 · 2 obs
● 2026-04-19 09:55:50
● 2026-05-11 19:59:50
●NSns2.websupport.cz2026-04-19 → 2026-05-11 · 2 obs
● 2026-04-19 09:55:50
● 2026-05-11 19:59:50
●NSns3.websupport.eu2026-04-19 → 2026-05-11 · 2 obs
● 2026-04-19 09:55:50
● 2026-05-11 19:59:50
●A89.187.196.1832026-04-19 → 2026-05-11 · 2 obs
● 2026-04-19 09:55:50
● 2026-05-11 19:59:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
czd.ns.nic.cz, c.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz-
opte.czns1.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: 2637ms | Queries: -

📄 Records

TypeCountSample Data
A189.187.196.183
NS3ns1.websupport.cz, ns2.websupport.cz...
TXT1v=spf1 include:_spf.jaw.cz ?all
SOA1ns1.websupport.cz admin.websupport.cz

Analysis

IP Addresses

opte.cz resolves to one IP number: 89.187.196.183.

Other host names, for example net-13-183.jaw.cz, share IP numbers with opte.cz.

Name Servers

opte.cz is delegated to three name servers: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.

opte.cz at least partially shares name servers with other domains, including albertdomu.online, smartgis.sk, agentura-api.org, zschvalkovice.cz and porsche-cb.cz.

Host names with two IP numbers:

ns1.websupport.cz: 2a10:bbc0::11 and 45.10.97.11

ns2.websupport.cz: 2a02:250:3::12 and 185.71.159.12

ns3.websupport.eu: 2a10:bbc0::13 and 45.10.97.13