rklabs.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 21 December 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 159.89.215.87 is hosted by DigitalOcean, LLC (AS14061) in Germany. Mail is handled by mail8.mymailcheap.com, alt1.mymailcheap.com and 1 more. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 159.89.215.87 | 30s | — | AS14061 | DigitalOcean, LLC | 159.89.128.0/17 | 🇩🇪 Germany | Frankfurt am Main |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 1 | 30s | mail8.mymailcheap.com | 51.75.15.250 | mail8.mymailcheap.com | AS16276 OVH SAS |
| 5 | 30s | alt1.mymailcheap.com | 51.83.107.245 | alt1.mymailcheap.com | AS16276 OVH SAS |
| 10 | 30s | alt2.mymailcheap.com | 158.69.83.225 | alt2.mymailcheap.com | AS16276 OVH SAS |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 159.89.215.87 |
| 🔶 Autoconfig | 159.89.215.87 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a03:b0c0:3:d0::1b76:1 | 30s | rklabs.dk | AS14061 | DigitalOcean, LLC | 2a03:b0c0:0:0:0:0:0:0/46 | 🇩🇪 Germany | Frankfurt am Main |
| TXT Record |
|---|
| nms-domain-verification=516200171609 |
| v=spf1 mx a:relay.mymailcheap.com -all |
| Policy | Record (rklabs.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx a:relay.mymailcheap.com -all |
| Policy | Record (_dmarc.rklabs.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; pct=100 |
| www | 95.111.207.115 2a03:b0c0:3:d0::1b76:1 (AS14061 AS202053) (address records, no CNAME) |
| www vs bare domain | Same network rklabs.dk: 95.111.207.115 2a04:3541:8000:1000:c82c:c0ff:fe66:1fcc (AS202053) www.rklabs.dk: 95.111.207.115 2a03:b0c0:3:d0::1b76:1 (AS14061 AS202053) |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~1024 bit below 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: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101200 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2023-12-21 |
| Expires | 2026-12-20 (63d) |
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).
| Domain | Registrar |
|---|---|
| renekoch.dk | Simply.com A/S |
| rklab.dk | Simply.com A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-17 05:58:51 shown | 742ms | 3 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-16 04:46:57 | 3319ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-12 21:49:41 | 4612ms | 3 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-02 23:10:43 | 4023ms | 3 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-27 11:38:07 | 1217ms | 3 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-22 18:02:14 | 961ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 13:05:07 | 2718ms | 3 NS 1 A 3 MX | 🔒 Secure |