f5-danmark.dk is a .dk domain served by 2 nameservers (lady.ns.cloudflare.com, yahir.ns.cloudflare.com). It was registered on 6 September 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by f5danmark-dk0e.mail.protection.outlook.com. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| lady.ns.cloudflare.com | — | — | — |
| yahir.ns.cloudflare.com | — | — | — |
| TXT Record |
|---|
| MS=ms28264486 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (f5-danmark.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.f5-danmark.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:rua+xjlqygor0q0m@dmarcwise.email; |
| Status | Report address (rua) |
|---|---|
| ✓ Enabled | mailto:rua+xjlqygor0q0m@dmarcwise.email |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves f5-danmark.dk: no address www.f5-danmark.dk: no address |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | Revoked (empty key) |
| dkim | — | Revoked (empty key) |
| k1 | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| s1 | — | Revoked (empty key) |
| s2 | — | Revoked (empty key) |
| selector1 | selector1-f5danmark-dk0e._domainkey.f5dk365.d-v1.dkim.mail.microsoft | RSA · ~2048 bit |
| selector2 | selector2-f5danmark-dk0e._domainkey.f5dk365.d-v1.dkim.mail.microsoft | 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: 1/10 · policy: -all
No problems found| 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 | 2404481172 |
| Primary NS (MNAME) | lady.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | CURANET A/S |
| Registered | 2025-09-06 |
| Expires | 2027-09-05 (323d) |
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 |
|---|---|---|---|
| 2026-09-02 23:34:38 | 10439ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-30 20:46:00 | 1535ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-29 18:26:26 | 2455ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-28 14:27:46 | 1861ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-26 12:44:19 | 969ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-01 19:56:16 | 1452ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-21 12:09:12 | 4588ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-17 09:10:18 shown | 1151ms | 2 NS 0 A 1 MX | 🔓 Insecure |