frederikhammer.dk is a .dk domain served by 2 nameservers (lloyd.ns.cloudflare.com, tess.ns.cloudflare.com). It was registered on 17 August 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by frederikhammer-dk.mail.protection.outlook.com, gw.mxbox.dk and 1 more. The zone is not DNSSEC-signed, 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.
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.40 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| G+lrlt5J07XFwjp7ktvzotgKNHMtmC7j9IQJzQSC0yq3cBawp57b+jGM6S5Cca6/Pq7vxvkbz3qXV230s0CqCA== |
| MS=ms24026223 |
| MS=ms65153579 |
| MS=ms96205457 |
| v=spf1 mx include:spf.protection.outlook.com include:spf.protection.outlook.com -all |
| Policy | Record (frederikhammer.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx include:spf.protection.outlook.com include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.frederikhammer.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc.rua@mxbox.dk ; ruf=mailto:dmarc.ruf@mxbox.dk; |
| www | 104.21.39.64 172.67.169.184 2606:4700:3030::ac43:a9b8 2606:4700:3035::6815:2740 (AS13335) (address records, no CNAME) |
| www vs bare domain | Only www resolves frederikhammer.dk: no address (all like this)www.frederikhammer.dk: 104.21.39.64 172.67.169.184 2606:4700:3030::ac43:a9b8 2606:4700:3035::6815:2740 (AS13335) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-frederikhammer-dk._domainkey.mxbox.onmicrosoft.com | 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: 3/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.frederikhammer.dk | M8TFG_GY1GfZfVD7UmaAFOmk727CJ4Aem9aQHRrgDGY |
| TXT | _acme-challenge.frederikhammer.dk | rnn2kasInSRj_oxGPNKC8VmFVDcjA3JNnA624IKgyJc |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2413645531 |
| Primary NS (MNAME) | lloyd.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2014-08-17 |
| Expires | 2030-08-31 (1409d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 13:18:24 | 1296ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-27 04:54:42 | 1771ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-07 19:50:11 | 1774ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-31 12:51:34 shown | 897ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-28 01:37:31 | 1479ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-08 14:27:50 | 9563ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-01 15:48:29 | 2227ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-25 15:38:19 | 4603ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-22 15:04:49 | 1178ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 07:23:19 | 1652ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-17 09:21:05 | 1794ms | 2 NS 0 A 3 MX | 🔓 Insecure |