rcs-besked.dk is a .dk domain served by 2 nameservers (lucy.ns.cloudflare.com, stan.ns.cloudflare.com). It was registered on 8 February 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.5.175 is hosted by Cloudflare, Inc. (AS13335). 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.5.175 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.133.173 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::6815:5af | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::ac43:85ad | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.5.175,172.67.133.173 ech=AEX+DQBBrwAgACAEvwJ5EJ2V4+5xxXJqnIJSx37+TAFFOZ3Cs+q2XjeQbAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:5af,2606:4700:3035::ac43:85ad |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (rcs-besked.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.rcs-besked.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; |
| www | Exists, no address |
| www vs bare domain | www does not resolve rcs-besked.dk: 104.21.5.175 172.67.133.173 2606:4700:3034::6815:5af 2606:4700:3035::ac43:85ad (AS13335) (all like this)www.rcs-besked.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: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2416341325 |
| Primary NS (MNAME) | lucy.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2017-02-08 |
| Expires | 2027-02-28 (125d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-21 11:50:24 | 504ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-09 09:25:51 | 410ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-06 10:13:46 | 2936ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-04 08:43:49 | 377ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-02 07:36:50 shown | 642ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-26 06:28:24 | 521ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-09 14:50:50 | 574ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-14 16:04:02 | 1271ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-08 14:13:43 | 2741ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-22 10:37:39 | 856ms | 2 NS 2 A 0 MX | ❓ Unknown |
| 2026-07-11 18:59:58 | 16590ms | 2 NS 2 A 0 MX | ❓ Unknown |
| 2026-06-30 06:39:01 | 989ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-25 11:02:36 | 847ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-24 11:25:44 | 1617ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-20 16:50:18 | 1057ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-20 15:37:28 | 885ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 09:47:37 | 488ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-17 12:13:31 | 763ms | 2 NS 2 A 0 MX | 🔓 Insecure |