r3f.dk is a .dk domain served by 5 nameservers (ns1.he.net, ns2.he.net, ns3.he.net and 2 more). It was registered on 12 August 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.63.117.184 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by post.ravne.land. The zone is DNSSEC-signed and validates, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.63.117.184 | 600s | ravne.land | AS3292 | TDC Holding A/S | 87.62.0.0/15 | 🇩🇰 Denmark | Nivå |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | post.ravne.land | 2a01:4f8:c0c:ef16:: 5.75.181.31 |
post.ravne.land post.ravne.land |
AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH |
| TXT Record |
|---|
| v=spf1 a mx ip4:95.216.174.21 include:web.shared.mysmtp.com -all |
| Policy | Record (r3f.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx ip4:95.216.174.21 include:web.shared.mysmtp.com -all |
| Flags | Tag | Value |
|---|---|---|
| 128 | iodef | mailto:hostmaster@r3f.dk |
| 128 | issue | letsencrypt.org |
| 128 | issuewild | ; |
| www CNAME | r3f.dk (all on r3f.dk) → 87.63.117.184 (AS3292) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 6/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.post.ravne.land | DANE-EE · SPKI · SHA-256 | 2327BA3121DF252115DF6DE75749989A… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100200 |
| Primary NS (MNAME) | ns1.he.net |
| Responsible (RNAME) | hostmaster@r3f.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2015-08-12 |
| Expires | 2027-08-31 (316d) |
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 |
|---|---|---|---|
| 2026-10-18 19:30:00 | 1480ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-17 19:06:56 | 1818ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-15 16:20:20 | 3383ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-14 15:21:40 | 2687ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-13 13:39:03 | 2995ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-12 02:01:24 | 3753ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-10 23:54:32 | 1695ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-09 08:31:50 | 2046ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 08:28:00 | 1030ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-05 22:48:08 | 871ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-03 22:42:47 | 2287ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 22:41:28 shown | 4085ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 22:31:08 | 2940ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 22:26:09 | 1031ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 14:00:05 | 3741ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-27 13:25:35 | 1097ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 13:05:26 | 1926ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 12:54:54 | 2028ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 15:01:43 | 1877ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 14:38:25 | 1000ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-17 21:17:21 | 2979ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-16 13:06:53 | 1405ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-14 18:04:28 | 1381ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-09 21:50:50 | 3183ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-05 05:31:43 | 2897ms | 5 NS 1 A 1 MX | 🔒 Secure |