hfu.cz - robtex.com

hfu.cz

DNSSEC⚠️ Not signed
NSalfa.ns.active24.cz ⚠️ Not in zone NS records
A2a02:4a8:ac24:100::96:2🇨🇿 ACTIVE24-AS2a02:4a8::/32 CZ-ACTIVE24-NET6
PTRalfa.ns.active24.cz
A81.95.96.2🇨🇿 ACTIVE24-AS81.95.96.0/20 CZ-ACTIVE24-NET1
PTRalfa.ns.active24.cz
NSbeta.ns.active24.cz ⚠️ Not in zone NS records
A2a00:4b40:1000:590:185:111:90:94🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32
PTRbeta.ns.active24.cz
A185.111.90.94🇭🇺 WEBSUPPORT-SRO-SK-AS185.111.88.0/22
PTRbeta.ns.active24.cz
NSgama.ns.active24.sk ⚠️ Not in zone NS records
A2a00:1968:0:1002:185:71:158:30🇸🇪 LOOPIA32a00:1968::/48
PTRgama.ns.active24.sk
A185.71.158.30🇸🇪 LOOPIA3185.71.158.0/24
PTRgama.ns.active24.sk

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=1783810040

Same first word

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Similar names

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ufh.info
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ufh.at
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fuh.de
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fhu.us

DNS History

13 records (3 active, 10 former)

20162017201820192020202120222023202420252026NSalfa.ns.active24.czbeta.ns.active24.czgama.ns.active24.skns1.tele3.czns2.tele3.czns3.tele3.czns4.tele3.euns4.tele3.skMXmail2.coramax.comA2a01:5e0:26::1712a02:4a8:ac24:110::10:2731.15.10.2788.146.242.171
●NSalfa.ns.active24.cz2021-03-01 → 2026-07-11 · 3 obs
○ 2016-05-24 12:52:46
● 2021-03-01 02:18:50
● 2026-07-11 23:13:50
●NSbeta.ns.active24.cz2021-03-01 → 2026-07-11 · 3 obs
○ 2016-05-24 12:52:46
● 2021-03-01 02:18:50
● 2026-07-11 23:13:50
●NSgama.ns.active24.sk2021-03-01 → 2026-07-11 · 3 obs
○ 2016-05-24 12:52:46
● 2021-03-01 02:18:50
● 2026-07-11 23:13:50
○NSns1.tele3.cz2015-08-11 → 2016-05-24 · 4 obs
● 2015-08-11 18:17:18
● 2016-05-24 12:52:46
○ 2021-03-01 02:18:50
○ 2026-07-11 23:13:50
○NSns2.tele3.cz2015-08-11 → 2016-05-24 · 4 obs
● 2015-08-11 18:17:18
● 2016-05-24 12:52:46
○ 2021-03-01 02:18:50
○ 2026-07-11 23:13:50
○NSns3.tele3.cz2015-08-11 → 2016-05-24 · 4 obs
● 2015-08-11 18:17:18
● 2016-05-24 12:52:46
○ 2021-03-01 02:18:50
○ 2026-07-11 23:13:50
○NSns4.tele3.eu2015-11-30 → 2016-05-24 · 5 obs
○ 2015-08-11 18:17:18
● 2015-11-30 19:42:42
● 2016-05-24 12:52:46
○ 2021-03-01 02:18:50
○ 2026-07-11 23:13:50
○NSns4.tele3.sk2015-08-11 → 2015-08-11 · 3 obs
● 2015-08-11 18:17:18
○ 2015-11-30 19:42:42
○ 2026-07-11 23:13:50
○MXmail2.coramax.com2021-03-01 → 2021-03-01 · 3 obs
● 2021-03-01 02:18:50
○ 2026-06-13 10:01:30
○ 2026-07-11 23:13:50
○A2a01:5e0:26::1712015-08-11 → 2016-05-24 · 4 obs
● 2015-08-11 18:17:18
● 2016-05-24 12:52:46
○ 2021-03-01 02:18:50
○ 2026-07-11 23:13:50
○A2a02:4a8:ac24:110::10:272021-03-01 → 2021-03-01 · 4 obs
○ 2016-05-24 12:52:46
● 2021-03-01 02:18:50
○ 2026-06-13 10:01:30
○ 2026-07-11 23:13:50
○A31.15.10.272021-03-01 → 2021-03-01 · 4 obs
○ 2016-05-24 12:52:46
● 2021-03-01 02:18:50
○ 2026-06-13 10:01:30
○ 2026-07-11 23:13:50
○A88.146.242.1712015-08-11 → 2016-05-24 · 4 obs
● 2015-08-11 18:17:18
● 2016-05-24 12:52:46
○ 2021-03-01 02:18:50
○ 2026-07-11 23:13:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
czc.ns.nic.cz, d.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz-
hfu.czalfa.ns.active24.cz, beta.ns.active24.cz, gama.ns.active24.sk4 records

✅ Authoritative Response

Server:185.71.158.30

NS records: alfa.ns.active24.cz, beta.ns.active24.cz, gama.ns.active24.sk

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

No DNSKEY for hfu.cz

⏱️ Timing

Total: 1267ms | Queries: -

📄 Records

TypeCountSample Data

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (alfa.ns.active24.cz, alfa.ns.active24.cz, beta.ns.active24.cz...)

Analysis

Name Servers

hfu.cz carries NS records delegating to alfa.ns.active24.cz, beta.ns.active24.cz and gama.ns.active24.sk.

At least some of hfu.cz's name servers are shared with other domains, for example sarlota.cz, tnbiz.cz, opticzone.cz and two more.

alfa.ns.active24.cz, beta.ns.active24.cz and gama.ns.active24.sk are three hostnames that each resolve to a pair of IP addresses: alfa.ns.active24.cz to 81.95.96.2 and 2a02:4a8:ac24:100::96:2, beta.ns.active24.cz to 185.111.90.94 and 2a00:4b40:1000:590:185:111:90:94, and gama.ns.active24.sk to 185.71.158.30 and 2a00:1968:0:1002:185:71:158:30.