osto.dk is a .dk domain served by 2 nameservers (kay.ns.cloudflare.com, wesley.ns.cloudflare.com). It was registered on 3 July 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by route1.mx.cloudflare.net, route3.mx.cloudflare.net and 1 more. The zone is not DNSSEC-signed, has no 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 ~all |
| Policy | Record (osto.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.mx.cloudflare.net ~all |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves osto.dk: no address www.osto.dk: no address |
| Wildcard | No |
DNS lookups: 1/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.osto.dk | DeWtpwieHZ3s1UVkKE7CmkPOE2oZB6PK8b9sxVWp11E |
| TXT | _acme-challenge.osto.dk | HdLAESsKzgYotDJ2Iu1pmFqsS_2tJ3rJ3w3essJxxFs |
| Service / Owner | Type | Cert association |
|---|---|---|
| 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.route1.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.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.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| 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… |
| 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 | 2413539700 |
| 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 | 2004-07-03 |
| Expires | 2027-07-31 (278d) |
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 |
|---|---|
| gatzwiller.dk | Simply.com A/S |
| osfem.dk | Simply.com A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-24 01:26:14 | 1437ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-10-01 02:50:22 | 3546ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-30 02:36:39 | 947ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-29 02:23:54 | 937ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-13 02:41:13 | 1036ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-08 03:12:13 shown | 907ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-02 12:21:36 | 9819ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-31 14:11:20 | 1290ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-24 09:56:05 | 1893ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-08 15:27:05 | 1704ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-07-31 18:21:12 | 1897ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-26 04:19:42 | 1040ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-17 12:59:54 | 946ms | 2 NS 0 A 3 MX | 🔓 Insecure |