nkt.cz - robtex.com
nkt.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.57.242.51🇩🇪 IQUER-AS185.57.240.0/22 iquer.net GmbH & Co KG - Net 1 | ||||||
| PTR | nkt0-l-balancer0.iquer.net | ||||||
| NS | a.portsdns.se ⭐ | ||||||
| A | 2607:f740:e009::1🇺🇸 NETACTUATE2607:f740:e009::/48 Anycast Prefix | ||||||
| PTR | a.portsdns.se | ||||||
| A | 45.54.35.101🇺🇸 NETACTUATE45.54.35.0/24 Proxy registration to prevent harm from ARIN-NONAUTH shutdown | ||||||
| PTR | a.portsdns.se | ||||||
| NS | b.portsdns.net | ||||||
| A | 2a00:11c0:3d::1🇦🇹 ANX-CUSTOMER2a00:11c0:3d::/48 Anycast powered by ANX | ||||||
| PTR | b.portsdns.net | ||||||
| A | 94.16.23.1🇦🇹 ANX-CUSTOMER94.16.23.0/24 Anycast powered by ANX | ||||||
| PTR | b.portsdns.net | ||||||
| TXT | 4lt2j5q1lf5lrqkmxm66j4wd6740svj8 | ||||||
| TXT | _wk82mkjp0venzri99lob3nfy7za6w53 | ||||||
| TXT | g48nzg0vzznh07n603trcbs9fl5zwszk | ||||||
| TXT | _lg18szpbqf8p8qpxcpcirzqmejon0uz | ||||||
| TXT | nsqn8rx33kvxgb1h69h4pmlvy36zrxk7 | ||||||
| TXT | 61v6yctxdp55qtpnxqcvbqdcfgn994hs | ||||||
| SOA | a.portsdns.seregistry@ports.net 2026-04-12 #0 | ||||||
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=1786958242 | ||||||
Same first word
Similar names
DNS History
14 records (3 active, 11 former)
●NSa.portsdns.se2026-06-13 → 2026-08-17 · 3 obs
● 2026-06-13 09:20:02
● 2026-08-17 09:39:00
●NSb.portsdns.net2026-06-13 → 2026-08-17 · 3 obs
● 2026-06-13 09:20:02
● 2026-08-17 09:39:00
○NSns.wedos.com2015-10-23 → 2016-11-10 · 4 obs
● 2016-11-10 09:38:00
○ 2017-05-21 14:48:24
○ 2026-08-17 09:39:00
○NSns.wedos.cz2015-10-23 → 2016-11-10 · 4 obs
● 2016-11-10 09:38:00
○ 2017-05-21 14:48:24
○ 2026-08-17 09:39:00
○NSns.wedos.eu2015-10-23 → 2016-11-10 · 4 obs
● 2016-11-10 09:38:00
○ 2017-05-21 14:48:24
○ 2026-08-17 09:39:00
○NSns.wedos.net2015-10-23 → 2016-11-10 · 4 obs
● 2016-11-10 09:38:00
○ 2017-05-21 14:48:24
○ 2026-08-17 09:39:00
○NSns1.rrpproxy.net2017-05-21 → 2021-10-05 · 5 obs
● 2017-05-21 14:48:24
● 2021-10-05 05:09:40
○ 2026-06-13 09:20:02
○ 2026-08-17 09:39:00
○NSns2.na.rrpproxy.net2020-12-21 → 2021-10-05 · 5 obs
● 2020-12-21 09:50:58
● 2021-10-05 05:09:40
○ 2026-06-13 09:20:02
○ 2026-08-17 09:39:00
○NSns2.rrpproxy.net2017-05-21 → 2021-10-05 · 5 obs
● 2017-05-21 14:48:24
● 2021-10-05 05:09:40
○ 2026-06-13 09:20:02
○ 2026-08-17 09:39:00
○NSns3.rrpproxy.net2017-05-21 → 2017-05-21 · 4 obs
● 2017-05-21 14:48:24
○ 2020-12-21 09:50:58
○ 2026-08-17 09:39:00
○MXphobos.profilamas.cz2015-10-23 → 2016-11-10 · 4 obs
● 2016-11-10 09:38:00
○ 2017-05-21 14:48:24
○ 2026-08-17 09:39:00
●A185.57.242.512020-12-21 → 2026-08-17 · 3 obs
● 2020-12-21 09:50:58
● 2026-08-17 09:39:00
○A62.138.237.2222017-05-21 → 2017-05-21 · 4 obs
● 2017-05-21 14:48:24
○ 2020-12-21 09:50:58
○ 2026-08-17 09:39:00
○A80.79.27.1652015-10-23 → 2016-11-10 · 4 obs
● 2016-11-10 09:38:00
○ 2017-05-21 14:48:24
○ 2026-08-17 09:39:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| nkt.cz | b.portsdns.net, a.portsdns.se | - |
✅ Authoritative Response
Server:94.16.23.1
NS records: b.portsdns.net, a.portsdns.se
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for nkt.cz (unsigned zone)
⏱️ Timing
Total: 1514ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.57.242.51 |
| NS | 2 | b.portsdns.net, a.portsdns.se |
| TXT | 6 | 4lt2j5q1lf5lrqkmxm66j4wd6740svj8, _wk82mkjp0venzri99lob3nfy7za6w53... |
| SOA | 1 | a.portsdns.se registry.ports.net |
Analysis
IP Addresses
nkt.cz has exactly one IP address — 185.57.242.51.
nktcables.dk, nkt.com, nkt.de plus two other host names have IP numbers in common with nkt.cz.
Name Servers
Two name servers handle the delegation for nkt.cz: b.portsdns.net and a.portsdns.se.
The name server configuration of nkt.cz is shared with other domains, for instance rindi.se, moustudios.com, gyno-pevaryl.com and two others.
nkt.cz shares at least some of its name servers with other domains, such as 51.156.in-addr.arpa and praneetthaicafe.se.
b.portsdns.net and a.portsdns.se both carry two IP addresses. The A records for b.portsdns.net are 94.16.23.1 and 2a00:11c0:3d::1; the A records for a.portsdns.se are 45.54.35.101 and 2607:f740:e009::1.