rkt.dk is a .dk domain served by 2 nameservers (chris.ns.cloudflare.com, kim.ns.cloudflare.com). It was registered on 18 March 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.33.252 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by SMTP.GOOGLE.COM. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 104.21.33.252 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.152.18 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.33.252 |
| 🔶 Autoconfig | 172.67.152.18 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3035::6815:21fc | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:9812 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.33.252,172.67.152.18 ech=AEX+DQBBmwAgACB4CPAGGobwgEgU6RAfmbNJOfCuZ0xumGwEYVHIPBqWLAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:21fc,2606:4700:3037::ac43:9812 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | whm01.yayhosting.dk |
| TXT Record |
|---|
| google-site-verification=umggcK2gMmRw-Rryid_W0nSJ966xDKczseD7-MiWAOo |
| v=spf1 +include:_spf.yayhosting.dk -all |
| v=spf1 ip4:195.242.130.46 include:_spf.yayhosting.dk -all |
| Policy | Record (rkt.dk) |
|---|---|
| -all (hard fail) | v=spf1 +include:_spf.yayhosting.dk -all |
| -all (hard fail) | v=spf1 ip4:195.242.130.46 include:_spf.yayhosting.dk -all |
| Policy | Record (_dmarc.rkt.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | 104.21.33.252 172.67.152.18 2606:4700:3035::6815:21fc 2606:4700:3037::ac43:9812 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~2048 bit |
| — | 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
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.rkt.dk | o2jjc9C07tVQgbbJui7dWXwmwi_zwM_EoB0KM2aOXTo |
| 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 | 2416953970 |
| Primary NS (MNAME) | chris.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 | 2026-03-18 |
| Expires | 2027-03-17 (150d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 14:34:40 shown | 826ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 01:46:30 | 966ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-16 14:44:25 | 1261ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 09:34:42 | 2663ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-11 04:03:05 | 1732ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-16 06:53:53 | 1181ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 05:58:53 | 927ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 17:31:53 | 1290ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 22:09:03 | 1029ms | 2 NS 2 A 1 MX | 🔓 Insecure |