grundahl.dk is a .dk domain served by 2 nameservers (phoenix.ns.cloudflare.com, ridge.ns.cloudflare.com). It was registered on 5 May 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by route3.mx.cloudflare.net, route1.mx.cloudflare.net and 1 more. 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.
| TXT Record |
|---|
| v=spf1 include:_spf.mx.cloudflare.net include:_spf.mark-it.dk ~all |
| Policy | Record (grundahl.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.mx.cloudflare.net include:_spf.mark-it.dk ~all |
| Policy | Record (_dmarc.grundahl.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; fo=1:d:s; ri=3600; |
| www | Exists, no address |
| www vs bare domain | Neither resolves grundahl.dk: no address www.grundahl.dk: no address |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | 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| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2413855664 |
| Primary NS (MNAME) | phoenix.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 | 1999-05-05 |
| Expires | 2027-06-30 (251d) |
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 |
|---|---|---|---|
| 2026-10-21 01:10:20 | 588ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-30 21:03:17 | 873ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-27 11:50:06 | 1328ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-27 04:44:53 | 992ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-07 16:18:53 | 761ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-04 01:58:10 shown | 733ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-08-30 03:27:05 | 783ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-08-25 17:10:13 | 893ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-08-25 08:50:56 | 1795ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-08-24 14:53:12 | 1704ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-08-23 14:43:29 | 5460ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-08-10 12:59:42 | 10625ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-07-18 03:31:29 | 9999ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-07-03 13:59:19 | 2233ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-06-29 13:32:50 | 1031ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-06-22 22:15:18 | 1823ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-06-21 14:11:36 | 4030ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-06-21 11:28:11 | 1110ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 09:20:07 | 1840ms | 2 NS 0 A 3 MX | 🔒 Secure |