rydborg.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 September 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.154 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com and 2 more. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 77.111.240.154 | — | webcluster27.webpod11-cph3.one.com | AS51468 | One.com A/S | 77.111.240.0/22 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | rydborg.dk → 77.111.240.154 |
| 🔶 Autoconfig | rydborg.dk → 77.111.240.154 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:102:d1:15fc:637:725b | — | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| www CNAME | rydborg.dk (all on rydborg.dk) |
| 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 |
| Selector | CNAME | Key |
|---|---|---|
| default | — | 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.
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 00E55642F312E05CDB899B1433EDF47F… |
| SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 00E55642F312E05CDB899B1433EDF47F… |
| SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 00E55642F312E05CDB899B1433EDF47F… |
| SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 00E55642F312E05CDB899B1433EDF47F… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026060101 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | nordicway ApS |
| Registered | 2010-09-07 |
| Expires | 2027-09-30 (346d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-27 01:11:54 | 635ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-16 20:59:29 | 9454ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-12 09:56:38 | 605ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-29 06:55:26 | 1330ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 18:13:07 | 960ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-29 22:00:47 | 13854ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-08 20:11:16 | 1284ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-20 03:45:45 | 755ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 22:21:38 shown | 2692ms | 2 NS 1 A 4 MX | 🔒 Secure |