frieskoler.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 13 March 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx12.comendosystems.com, mx6.comendosystems.net. 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 21600s | mx12.comendosystems.com | 192.162.219.155 2a01:77c0:1619:4101:d99:c22:fb4d:290e |
mx41.electric.net mx10.electric.net |
AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. |
| 20 | 21600s | mx6.comendosystems.net | 192.162.219.49 | mx41.electric.net | AS16509 Amazon.com, Inc. |
| TXT Record |
|---|
| MS=ms50118935 |
| v=spf1 ip4:93.167.190.198 include:spf.protection.outlook.com include:spf.comendosystems.com ip4:93.167.190.194 -all |
| Policy | Record (frieskoler.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:93.167.190.198 include:spf.protection.outlook.com include:spf.comendosystems.com ip4:93.167.190.194 -all |
| www | 195.47.247.18 (AS51468) (address records, no CNAME) |
| www vs bare domain | Only www resolves (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 4/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Key type | Algorithm | Public key |
|---|---|---|
| KSK | ECDSA P-256/SHA-256 | z6C1C7vnEwP8+Ve14FqqRA6b5ASIhtXZn2z196D3… |
| ZSK | ECDSA P-256/SHA-256 | yCyqJYMKy/zplBXvzkmirR362CfT636CE+0zgZFZ… |
| Field | Value |
|---|---|
| Serial | 2026072601 |
| 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 | Simply.com A/S |
| Registered | 2001-03-13 |
| Expires | 2027-03-31 (165d) |
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).
| Domain | Registrar |
|---|---|
| elsekr.dk | Simply.com A/S |
| fairløn.dk | Simply.com A/S |
| fsl.dk | Simply.com A/S |
| trioannonce.dk | Simply.com A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-26 05:30:12 | 1189ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-23 02:11:04 | 2309ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-11 22:50:35 | 863ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-27 03:12:41 | 2734ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-26 21:29:03 | 1543ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-25 04:37:59 | 932ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-16 19:09:35 shown | 1363ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-26 21:09:22 | 1150ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-18 23:15:27 | 792ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-16 12:50:54 | 1335ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-03 07:03:29 | 1135ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-25 19:23:56 | 748ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-17 09:19:31 | 965ms | 2 NS 0 A 2 MX | 🔒 Secure |