fruehojgaard.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 22 September 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 45.77.55.63 is hosted by The Constant Company, LLC (AS20473) in Germany. Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk and 1 more. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 45.77.55.63 | 600s | fruehojgraad-2026.tempurl.host | AS20473 | The Constant Company, LLC | 45.76.0.0/15 | 🇩🇪 Germany | Frankfurt am Main |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.dk → 52.98.149.136 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2001:19f0:6c01:1ba9:5400:6ff:fe9e:ca77 | 600s | — | AS20473 | The Constant Company, LLC | 2001:19f0:6000:0:0:0:0:0/36 | 🇩🇪 Germany | Frankfurt am Main |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 10 | 443 | outlook.domea.dk |
| TXT Record |
|---|
| fruehojgaard.dk |
| tiaYd5gS478W0qJqykel6488zdPQkh9cb1uHG4764Ohabi8diUUthFtblxwnKmUCMSBETA99APONxoLWTdXtsQ== |
| v=spf1 include:_fruehojgaard_dk.spf-protect.com -all |
| yahoo-verification-key=L4bhyYyuJf1BeRA4TsG7rTRneC1DRfL5TnlNmv82Myo= |
| Policy | Record (fruehojgaard.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_fruehojgaard_dk.spf-protect.com -all |
| Policy | Record (_dmarc.fruehojgaard.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:6641c269b24ad@dmarc-dk.centerasecurity.com; |
| www CNAME | fruehojgaard.dk (all on fruehojgaard.dk) |
| www vs bare domain | Same network fruehojgaard.dk: 45.77.55.63 2001:19f0:6c01:1ba9:5400:6ff:fe9e:ca77 (AS20473) www.fruehojgaard.dk: 45.77.55.63 2001:19f0:6c01:1ba9:5400:6ff:fe9e:ca77 (AS20473) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u42695628.wl129.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u42695628.wl129.sendgrid.net | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 5/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| 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 | ONE.COM A/S |
| Registered | 1999-09-22 |
| Expires | 2027-09-30 (347d) |
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 |
|---|---|---|---|
| 2026-10-12 16:57:25 shown | 1149ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-09 12:17:21 | 1216ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-27 06:10:41 | 1079ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-23 11:09:09 | 4692ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-20 17:23:41 | 2890ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-13 16:18:53 | 2197ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-03 14:48:21 | 927ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-27 19:45:33 | 832ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-23 16:32:02 | 6926ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-10 22:42:59 | 1238ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-22 15:18:34 | 998ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-17 10:15:45 | 3093ms | 2 NS 1 A 3 MX | 🔒 Secure |