noerskovolsen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 16 February 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 20.50.64.8 is hosted by Microsoft Corporation (AS8075) in Ireland. Mail is handled by mx.noerskovolsen.dk. The zone is DNSSEC-signed and validates, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 20.50.64.8 | 3600s | — | AS8075 | Microsoft Corporation | 20.48.0.0/12 | 🇮🇪 Ireland | Dublin |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx.noerskovolsen.dk | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | web3.penhotel.dk → 93.191.152.125 |
| 🔶 Autoconfig | web3.penhotel.dk → 93.191.152.125 |
| TXT Record |
|---|
| v=spf1 include:spf.simply.com include:_custspf.one.com include:eu.mailgun.org -all |
| Policy | Record (noerskovolsen.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.simply.com include:_custspf.one.com include:eu.mailgun.org -all |
| Policy | Record (_dmarc.noerskovolsen.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; |
| www CNAME | noerskov-olsen.azurewebsites.net (all on azurewebsites.net) → 20.50.64.8 (AS8075) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 4/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.noerskovolsen.dk | web3.penhotel.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100302 |
| 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 | 2004-02-16 |
| Expires | 2027-02-28 (126d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-11 19:52:22 | 472ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-06 11:14:19 | 2339ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-05 08:44:41 | 1525ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-04 08:16:38 | 901ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-03 08:13:41 shown | 977ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 08:10:48 | 744ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 08:04:56 | 762ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 07:55:39 | 738ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 07:48:35 | 686ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-28 06:30:35 | 747ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-27 06:05:37 | 721ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 05:41:07 | 759ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 05:20:54 | 687ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 05:02:30 | 797ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-17 16:49:25 | 903ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-10 16:59:55 | 821ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-04 00:52:08 | 575ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-31 07:12:02 | 1531ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-30 05:02:51 | 679ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 10:50:42 | 575ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 10:42:42 | 617ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 10:38:45 | 845ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-25 11:41:11 | 1427ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-24 11:28:25 | 2364ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-23 08:00:29 | 4426ms | 2 NS 1 A 1 MX | 🔒 Secure |