cdad.cz - robtex.com

cdad.cz

DNSSEC⚠️ Not signed
NSns1.cdt.cz ⭐
A2001:1a48:0:1::2🇨🇿 CDT-AS2001:1a48::/32 CD-Telematika a.s. The Czech Republic
PTRns1.cdt.cz
A81.19.33.2🇨🇿 CDT-AS81.19.32.0/20 CD-Telematika a.s. The Czech Republic
PTRns1.cdt.cz
NSns2.cdt.cz
A2001:1a48:0:2::2🇨🇿 CDT-AS2001:1a48::/32 CD-Telematika a.s. The Czech Republic
PTRns2.cdt.cz
A81.19.34.2🇨🇿 CDT-AS81.19.32.0/20 CD-Telematika a.s. The Czech Republic
PTRns2.cdt.cz
SOAns1.cdt.czhostmaster@cdt.cz 2025-11-20 #0

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=1778514437

Same first word

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cdad.com
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addc.lv
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addc.eu
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ddca.org.au
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DNS History

2 records (2 active, 0 former)

NSns1.cdt.czns2.cdt.cz
●NSns1.cdt.cz2026-05-01 → 2026-05-11 · 2 obs
● 2026-05-01 09:35:32
● 2026-05-11 15:53:54
●NSns2.cdt.cz2026-05-01 → 2026-05-11 · 2 obs
● 2026-05-01 09:35:32
● 2026-05-11 15:53:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
cdad.czns1.cdt.cz, ns2.cdt.cz4 records

✅ Authoritative Response

Server:81.19.33.2

NS records: ns1.cdt.cz, ns2.cdt.cz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cdad.cz (unsigned zone)

⏱️ Timing

Total: 4109ms | Queries: -

📄 Records

TypeCountSample Data
NS2ns2.cdt.cz, ns1.cdt.cz
SOA1ns1.cdt.cz hostmaster.cdt.cz

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.cdt.cz, ns1.cdt.cz, ns2.cdt.cz...)

Analysis

Name Servers

cdad.cz's delegation uses two name servers: ns1.cdt.cz and ns2.cdt.cz.

cdad.cz uses the same name server setup as other domains, such as cdtnet.cz, motion-cargo.cz, cdrest.cz, cdcargo.info and cdprovas.cz.

cdad.cz at least partially shares name servers with other domains, including alberonletohrad.info, kyocera-avx.cz, 99.146.195.in-addr.arpa, visivox.com and marekzt.cz.

these name servers are commonly used alongside the name servers ns.cdt.cz, dns.alberon.cz, ns1.mirnet.cz, ns.vlada.cz and nssec.vlada.cz.

Host names with two IPs:

ns1.cdt.cz points to 2001:1a48:0:1::2 and 81.19.33.2

ns2.cdt.cz points to 2001:1a48:0:2::2 and 81.19.34.2