dnn.cz - robtex.com

dnn.cz

DNSSEC🔒 Signed (DS record present)
A185.66.36.185🇨🇿 GIGASERVER185.66.36.0/22 CZ-SEONET-20140805
PTRwh53.farma.gigaserver.cz
NS1.ns.gigaserver.cz ⭐
A2a03:1e20:0:5::92🇨🇿 GIGASERVER2a03:1e20::/32 CZ-SEONET-20140804
PTR1.ns.gigaserver.cz
A185.66.36.92🇨🇿 GIGASERVER185.66.36.0/22 CZ-SEONET-20140805
PTR1.ns.gigaserver.cz
NS2.ns.gigaserver.cz
A2a03:1e20:0:5::93🇨🇿 GIGASERVER2a03:1e20::/32 CZ-SEONET-20140804
PTR2.ns.gigaserver.cz
A185.66.36.93🇨🇿 GIGASERVER185.66.36.0/22 CZ-SEONET-20140805
PTR2.ns.gigaserver.cz
NS3.ns.gigaserver.cz
A2a03:1e20:0:5::250🇨🇿 GIGASERVER2a03:1e20::/32 CZ-SEONET-20140804
PTR3.ns.gigaserver.cz
A185.66.36.250🇨🇿 GIGASERVER185.66.36.0/22 CZ-SEONET-20140805
PTR3.ns.gigaserver.cz
NS4.ns.gigaserver.cz
A40.67.208.152🇳🇱 Microsoft40.67.0.0/16
MXmail.gigaserver.cz ⭐
A185.66.36.222🇨🇿 GIGASERVER185.66.36.0/22 CZ-SEONET-20140805
PTRmail.gigaserver.cz
TXTv=spf1 mx a include:smtp-gw.gigaserver.cz ~all
SOA1.ns.gigaserver.czdns@gigaserver.cz serial=1769608693

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=1774702035

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DNS History

10 records (6 active, 4 former)

20162017201820192020202120222023202420252026NS1.ns.gigaserver.cz2.ns.gigaserver.cz3.ns.gigaserver.cz4.ns.gigaserver.czalfa.ns.active24.czbeta.ns.active24.czgama.ns.active24.skMXmail.gigaserver.czA185.66.36.18581.95.96.29
●NS1.ns.gigaserver.cz2026-03-26 → 2026-03-28 · 3 obs
○ 2021-10-06 02:34:22
● 2026-03-26 22:12:36
● 2026-03-28 13:02:54
●NS2.ns.gigaserver.cz2026-03-26 → 2026-03-28 · 3 obs
○ 2021-10-06 02:34:22
● 2026-03-26 22:12:36
● 2026-03-28 13:02:54
●NS3.ns.gigaserver.cz2026-03-26 → 2026-03-28 · 3 obs
○ 2021-10-06 02:34:22
● 2026-03-26 22:12:36
● 2026-03-28 13:02:54
●NS4.ns.gigaserver.cz2026-03-26 → 2026-03-28 · 3 obs
○ 2021-10-06 02:34:22
● 2026-03-26 22:12:36
● 2026-03-28 13:02:54
○NSalfa.ns.active24.cz2015-08-16 → 2021-10-06 · 4 obs
● 2015-08-16 12:18:54
● 2021-10-06 02:34:22
○ 2026-03-26 22:12:36
○ 2026-03-28 13:02:54
○NSbeta.ns.active24.cz2015-08-16 → 2021-10-06 · 4 obs
● 2015-08-16 12:18:54
● 2021-10-06 02:34:22
○ 2026-03-26 22:12:36
○ 2026-03-28 13:02:54
○NSgama.ns.active24.sk2015-08-16 → 2021-10-06 · 4 obs
● 2015-08-16 12:18:54
● 2021-10-06 02:34:22
○ 2026-03-26 22:12:36
○ 2026-03-28 13:02:54
●MXmail.gigaserver.cz2026-03-26 → 2026-03-28 · 2 obs
● 2026-03-26 22:12:36
● 2026-03-28 13:02:54
●A185.66.36.1852026-03-26 → 2026-03-28 · 3 obs
○ 2021-10-06 02:34:22
● 2026-03-26 22:12:36
● 2026-03-28 13:02:54
○A81.95.96.292015-08-16 → 2021-10-06 · 4 obs
● 2015-08-16 12:18:54
● 2021-10-06 02:34:22
○ 2026-03-26 22:12:36
○ 2026-03-28 13:02:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz-
dnn.cz1.ns.gigaserver.cz, 2.ns.gigaserver.cz, 3.ns.gigaserver.cz, 4.ns.gigaserver.cz4 records

✅ Authoritative Response

Server:185.66.36.92

NS records: 1.ns.gigaserver.cz, 2.ns.gigaserver.cz, 3.ns.gigaserver.cz, 4.ns.gigaserver.cz

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1038ms | Queries: -

📄 Records

TypeCountSample Data
A1185.66.36.185
NS41.ns.gigaserver.cz, 2.ns.gigaserver.cz...
MX1mail.gigaserver.cz (pri: 50)
TXT1v=spf1 mx a include:smtp-gw.gigaserver.c
SOA11.ns.gigaserver.cz dns.gigaserver.cz

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (1.ns.gigaserver.cz, 2.ns.gigaserver.cz, 3.ns.gigaserver.cz...)

Analysis

IP Addresses

dnn.cz points to a single IP address: 185.66.36.185.

Other host names such as worldidol.tv, aurumclinic.eu, regionweb.cz, vysavace-domacnost.cz and proff.cz share IPs with dnn.cz.

Name Servers

dnn.cz is delegated to four name servers: 1.ns.gigaserver.cz, 2.ns.gigaserver.cz, 3.ns.gigaserver.cz and 4.ns.gigaserver.cz.

dnn.cz at least partially shares name servers with other domains, for example woodmizer.cz, mir.com.hr, vizualizace.cz, avrent.net and sklotechnik.cz.

Host names with two IP numbers:

1.ns.gigaserver.cz points to 2a03:1e20:0:5::92 and 185.66.36.92.

2.ns.gigaserver.cz points to 2a03:1e20:0:5::93 and 185.66.36.93.

3.ns.gigaserver.cz points to 2a03:1e20:0:5::250 and 185.66.36.250.

Host names with one IP number:

4.ns.gigaserver.cz points to 40.67.208.152.

Mail Servers

The mail.gigaserver.cz mail server handles dnn.cz.

dnn.cz shares the same mail server setup as other domains, including supersat.cz, abheating.sk, zlatastuha.cz, bulanci.com and chmelab.eu.

mail.gigaserver.cz points to a single IP number: 185.66.36.222.