bti.cz - robtex.com

bti.cz

DNSSEC⚠️ Not signed
NSns1.one.cz ⚠️ Not in zone NS records
A2001:470:6f:864::1🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRns1.one.cz
A46.149.113.151🇨🇿 ALFSERVIS-AS46.149.112.0/20 Route object 1 AlfServis s.r.o.
PTRns1.one.cz
NSns2.one.cz ⚠️ Not in zone NS records
A193.85.20.140🇨🇿 TMOBILE-CZ193.85.0.0/16 T-Mobile Czech Republic a.s.
PTRns2.one.cz
NSns3.one.cz ⚠️ Not in zone NS records
A2001:470:6f:30f::1:1🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRns3.one.cz
A46.149.113.187🇨🇿 ALFSERVIS-AS46.149.112.0/20 Route object 1 AlfServis s.r.o.
PTRns3.one.cz

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=1784476042

Same first word

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DNS History

3 records (3 active, 0 former)

NSns1.one.czns2.one.czns3.one.cz
●NSns1.one.cz2026-06-04 → 2026-07-19 · 2 obs
● 2026-06-04 16:03:46
● 2026-07-19 16:30:02
●NSns2.one.cz2026-06-04 → 2026-07-19 · 2 obs
● 2026-06-04 16:03:46
● 2026-07-19 16:30:02
●NSns3.one.cz2026-06-04 → 2026-07-19 · 2 obs
● 2026-06-04 16:03:46
● 2026-07-19 16:30:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
czc.ns.nic.cz, d.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz-
bti.czns1.one.cz, ns2.one.cz, ns3.one.cz5 records

✅ Authoritative Response

Server:46.149.113.187

NS records: ns1.one.cz, ns2.one.cz, ns3.one.cz

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

No DNSKEY for bti.cz

⏱️ Timing

Total: 611ms | Queries: -

📄 Records

TypeCountSample Data

📌 Glue Records Collected

Total: 5

Out-of-bailiwick: 5 (ns1.one.cz, ns1.one.cz, ns2.one.cz...)

Analysis

Name Servers

bti.cz carries NS records delegating to ns1.one.cz, ns2.one.cz and ns3.one.cz.

bti.cz partially shares its NS delegation with several other domains, including domeny.biz, imarketing.cz, decibel.cz and two others.

Hosts with two IP numbers each:

ns1.one.cz resolves to two addresses: 46.149.113.151 and 2001:470:6f:864::1.

ns3.one.cz resolves to two addresses: 46.149.113.187 and 2001:470:6f:30f::1:1.

Hosts that resolve to one IP address:

The hostname ns2.one.cz resolves to 193.85.20.140.