gatzwiller.dk is a .dk domain served by 2 nameservers (kay.ns.cloudflare.com, wesley.ns.cloudflare.com). It was registered on 11 March 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by route2.mx.cloudflare.net, route1.mx.cloudflare.net and 1 more. The zone is DNSSEC-signed but currently fails validation, 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 a mx include:_spf.google.com include:_spf.mx.cloudflare.net ~all |
| Policy | Record (gatzwiller.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx include:_spf.google.com include:_spf.mx.cloudflare.net ~all |
| Policy | Record (_dmarc.gatzwiller.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:45830e9b9d694b37bd4729024a6bd638@dmarc-reports.cloudflare.net,mailto:niels@gatzwiller.dk aspf=r; |
| www | Exists, no address |
| www vs bare domain | Neither resolves gatzwiller.dk: no address www.gatzwiller.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 |
DNS lookups: 4/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| 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.route1.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route2.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-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 | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | broken trust chain resolving 'gatzwiller.dk/DNSKEY/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2405097726 |
| Primary NS (MNAME) | kay.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 1997-03-11 |
| Expires | 2031-03-31 (1617d) |
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 |
|---|---|
| osfem.dk | Simply.com A/S |
| osto.dk | Simply.com A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-16 01:53:56 | 1913ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-10-14 17:23:10 | 699ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-10-09 13:16:25 | 1199ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-22 13:14:36 | 1030ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-14 13:14:26 | 2773ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-07 10:16:06 | 1047ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-29 00:40:41 | 2958ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-27 20:42:01 | 1044ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-26 10:01:08 | 1590ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-17 03:45:37 | 9747ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-09 11:54:03 | 1670ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-07-11 17:35:44 | 9319ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-26 00:23:06 | 2344ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-25 21:08:14 | 1829ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-24 12:31:15 | 1113ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 09:39:09 | 1513ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-17 10:32:54 shown | 1346ms | 2 NS 0 A 3 MX | ⚠️ Bogus |
| 2026-06-17 10:32:41 | 1028ms | 2 NS 0 A 3 MX | 🔓 Insecure |