f501.dk is a .dk domain served by 2 nameservers (achiel.ns.cloudflare.com, lovisa.ns.cloudflare.com). It was registered on 18 March 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.27.22 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx1.migadu.com, aspmx2.migadu.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|
| achiel.ns.cloudflare.com | — | — | — |
| lovisa.ns.cloudflare.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.27.22 | — | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.140.236 | — | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:1b16 | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3032::ac43:8cec | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.27.22,172.67.140.236 ech=AEX+DQBBBwAgACCqfmcfnIuoKJ5IlEf/fctMxRpLGzhWDr4T3BFQFMHreQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:1b16,2606:4700:3032::ac43:8cec |
| TXT Record |
|---|
| hosted-email-verify=hgqtaa4n |
| v=spf1 include:spf.migadu.com -all |
| Policy | Record (f501.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.migadu.com -all |
| Policy | Record (_dmarc.f501.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; |
| www | 104.21.27.22 172.67.140.236 2606:4700:3031::6815:1b16 2606:4700:3031::ac43:8cec (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 5/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.aspmx1.migadu.com | DANE-EE · SPKI · SHA-256 | 4D97323D167383FD6998CE177C02C80C… |
| SMTP _25._tcp.aspmx2.migadu.com | DANE-EE · SPKI · SHA-256 | 4D97323D167383FD6998CE177C02C80C… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2406259056 |
| Primary NS (MNAME) | achiel.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 | 2025-03-18 |
| Expires | 2027-03-17 (147d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-21 11:29:36 | 1003ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-21 00:40:48 | 1365ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-13 21:58:47 | 1868ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-06 20:10:16 | 2154ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-27 01:51:20 | 2984ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-26 12:37:56 | 764ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-23 20:26:42 | 6677ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-04 23:05:38 | 10637ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-26 14:35:20 | 3190ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-23 01:18:33 | 972ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-17 09:10:27 shown | 1733ms | 2 NS 2 A 2 MX | 🔓 Insecure |