holtcnc.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 1 February 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.63.207.223 is hosted by TDC Holding A/S (AS3292) in Denmark. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.63.207.223 | 3600s | 87-63-207-223-static.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 87.62.0.0/15 | 🇩🇰 Denmark | Aarhus |
| www | 104.21.15.174 172.67.206.160 2606:4700:3031::ac43:cea0 2606:4700:3032::6815:fae (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026090501 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2026-02-01 |
| Expires | 2027-01-31 (98d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-23 23:53:24 | 1140ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-23 11:30:58 | 596ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-21 20:10:25 | 1190ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-20 00:00:28 shown | 487ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-06 06:23:30 | 620ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-20 12:34:54 | 4589ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-07 09:40:47 | 8568ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-17 07:07:22 | 603ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-08 10:11:33 | 538ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-26 15:16:44 | 471ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-24 22:05:10 | 1910ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-17 12:58:02 | 3909ms | 2 NS 1 A 0 MX | 🔒 Secure |