holdtnielsen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 6 August 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 85.218.236.95 is hosted by Sinal A/S (AS39642) in Denmark. Mail is handled by mail.holdtnielsen.dk. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 85.218.236.95 | 43200s | 85-218-236-95.norlyscustomer.net | AS39642 | Sinal A/S | 85.218.128.0/17 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | mail.holdtnielsen.dk | 85.218.236.95 | 85-218-236-95.norlyscustomer.net | AS39642 Sinal A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 85.218.236.95 |
| 🔶 Autoconfig | 85.218.236.95 |
| www | 85.218.236.95 (AS39642) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101201 |
| 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 | Punktum dk A/S (direct) |
| Registered | 2011-08-06 |
| Expires | 2027-08-31 (310d) |
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 |
|---|---|---|---|
| 2026-10-13 14:17:00 shown | 1307ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 17:52:57 | 477ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-15 00:17:01 | 829ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 13:44:21 | 685ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-13 12:52:01 | 8928ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-19 06:29:59 | 32519ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-14 05:04:23 | 8833ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 12:55:12 | 1126ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 18:33:16 | 973ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 22:02:42 | 711ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 13:59:39 | 1732ms | 2 NS 1 A 1 MX | 🔒 Secure |