cent.cz - robtex.com
cent.cz
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.one.cz ⚠️ Not in zone NS records | ||||||
| A | 2001:470:6f:864::1🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | ns1.one.cz | ||||||
| A | 46.149.113.151🇨🇿 ALFSERVIS-AS46.149.112.0/20 Route object 1 AlfServis s.r.o. | ||||||
| PTR | ns1.one.cz | ||||||
| NS | ns2.one.cz ⚠️ Not in zone NS records | ||||||
| A | 193.85.20.140🇨🇿 TMOBILE-CZ193.85.0.0/16 T-Mobile Czech Republic a.s. | ||||||
| PTR | ns2.one.cz | ||||||
| NS | ns3.one.cz ⚠️ Not in zone NS records | ||||||
| A | 2001:470:6f:30f::1:1🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | ns3.one.cz | ||||||
| A | 46.149.113.187🇨🇿 ALFSERVIS-AS46.149.112.0/20 Route object 1 AlfServis s.r.o. | ||||||
| PTR | ns3.one.cz | ||||||
cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.ns.nic.cz ⭐ | ||||||
| NS | b.ns.nic.cz | ||||||
| NS | c.ns.nic.cz | ||||||
| NS | d.ns.nic.cz | ||||||
| SOA | a.ns.nic.czhostmaster@nic.cz serial=1775983637 | ||||||
Same first word
Similar names
DNS History
11 records (3 active, 8 former)
○NSns.wedos.com2015-07-14 → 2016-12-30 · 4 obs
● 2016-12-30 15:40:26
○ 2026-03-26 22:14:00
○ 2026-04-12 09:15:36
○NSns.wedos.cz2015-07-14 → 2016-12-30 · 4 obs
● 2016-12-30 15:40:26
○ 2026-03-26 22:14:00
○ 2026-04-12 09:15:36
○NSns.wedos.eu2015-07-14 → 2016-12-30 · 4 obs
● 2016-12-30 15:40:26
○ 2026-03-26 22:14:00
○ 2026-04-12 09:15:36
○NSns.wedos.net2015-07-14 → 2016-12-30 · 4 obs
● 2016-12-30 15:40:26
○ 2026-03-26 22:14:00
○ 2026-04-12 09:15:36
●NSns1.one.cz2026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 22:14:00
● 2026-04-12 09:15:36
●NSns2.one.cz2026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 22:14:00
● 2026-04-12 09:15:36
●NSns3.one.cz2026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 22:14:00
● 2026-04-12 09:15:36
○A2a02:2b88:1:4::172016-12-27 → 2016-12-30 · 5 obs
● 2016-12-27 14:24:24
● 2016-12-30 15:40:26
○ 2026-03-26 22:14:00
○ 2026-04-12 09:15:36
○A2a02:2b88:1:4::182015-07-14 → 2016-09-08 · 4 obs
● 2016-09-08 18:45:16
○ 2016-12-27 14:24:24
○ 2026-04-12 09:15:36
○A46.28.105.32016-12-27 → 2016-12-30 · 5 obs
● 2016-12-27 14:24:24
● 2016-12-30 15:40:26
○ 2026-03-26 22:14:00
○ 2026-04-12 09:15:36
○A46.28.105.42015-07-14 → 2016-09-08 · 4 obs
● 2016-09-08 18:45:16
○ 2016-12-27 14:24:24
○ 2026-04-12 09:15:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | d.ns.nic.cz, b.ns.nic.cz, a.ns.nic.cz, c.ns.nic.cz | - |
| cent.cz | ns1.one.cz, ns2.one.cz, ns3.one.cz | 5 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 cent.cz
⏱️ Timing
Total: 627ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
📌 Glue Records Collected
Total: 5
Out-of-bailiwick: 5 (ns1.one.cz, ns2.one.cz, ns3.one.cz...)
Analysis
Name Servers
The delegation for cent.cz is handled by three name servers: ns1.one.cz, ns2.one.cz and ns3.one.cz.
cent.cz at least partially shares name servers with other domains, for instance sbreality.cz, dentalnihygienistka.cz, 0a.cz, hors.sk and kliest.eu.
These name servers are commonly used with a.one.cz and b.one.cz.
Host names with two IP numbers:
ns1.one.cz points to: 2001:470:6f:864::1 and 46.149.113.151
ns3.one.cz points to: 2001:470:6f:30f::1:1 and 46.149.113.187
Host names with one IP number:
ns2.one.cz points to: 193.85.20.140