frederikshavnmail.dk is a .dk domain served by 3 nameservers (ns4.hostonline.dk, ns5.hostonline.dk, ns6.hostonline.dk). It was registered on 4 October 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.195.185.220 is hosted by GlobalConnect A/S (AS31027) in Denmark. Mail is handled by he.hostonline.dk, mx-backup.hostonline.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 |
|---|---|---|---|---|---|---|---|
| 217.195.185.220 | 3600s | webhotel12.hostonline.dk | AS31027 | GlobalConnect A/S | 217.195.176.0/20 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscoverredirect.hostonline.dk → 217.195.185.209 |
| TXT Record |
|---|
| v=spf1 a mx include:_spf.hostonline.dk -all |
| Policy | Record (frederikshavnmail.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx include:_spf.hostonline.dk -all |
| Policy | Record (_dmarc.frederikshavnmail.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; aspf=r; |
| www CNAME | frederikshavnmail.dk (all on frederikshavnmail.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 10 iterations · 8-byte salt · opt-out RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 6/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026093002 |
| Primary NS (MNAME) | ns4.hostonline.dk |
| Responsible (RNAME) | hostmaster@hostonline.dk |
| Refresh | 86400s |
| Retry | 7200s |
| Expire | 3600000s |
| Minimum (neg-cache TTL) | 172800s |
| Field | Value |
|---|---|
| Registrar | TS COMPUTER ApS |
| Registered | 2019-10-04 |
| Expires | 2026-10-31 (14d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 09:34:56 | 1243ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-10 18:36:26 | 1806ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-05 10:06:20 | 375ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 09:51:33 shown | 2900ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-27 09:08:30 | 1122ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-25 20:29:55 | 560ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-21 07:30:47 | 834ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-14 04:54:58 | 4022ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-08 17:59:06 | 4410ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-31 18:13:35 | 2763ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-27 03:17:57 | 758ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-26 03:12:21 | 1993ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-21 12:20:59 | 2959ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-17 04:15:10 | 3809ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-11 17:07:25 | 1233ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-10 10:03:59 | 2159ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-05 16:16:09 | 1432ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-27 13:01:34 | 892ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-22 09:26:52 | 9820ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-17 13:16:56 | 1637ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-14 14:24:10 | 1650ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-08 14:06:51 | 9025ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-03 12:09:04 | 1562ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-28 07:55:54 | 1088ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 10:28:30 | 539ms | 3 NS 1 A 2 MX | 🔒 Secure |