ckjeldmark.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 2 January 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 1 more. The zone is DNSSEC-signed and validates, publishes a 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns01.one.com | — | — | — |
| ns02.one.com | — | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | aspmx.l.google.com | 64.233.161.27 | lh-in-f27.1e100.net | AS15169 Google LLC |
| 20 | — | alt1.aspmx.l.google.com | 192.178.158.27 | lcdels-in-f27.1e100.net | AS15169 Google LLC |
| 30 | — | alt2.aspmx.l.google.com | 172.253.158.27 | so-in-f27.1e100.net | AS15169 Google LLC |
| TXT Record |
|---|
| google-site-verification=vc6Ahwn3okdjbMLzoKgjrshYs3UDj57b36BmIACS8rg |
| v=spf1 include:_spf.google.com ~all |
| Policy | Record (ckjeldmark.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.google.com ~all |
| Policy | Record (_dmarc.ckjeldmark.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=100 |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves ckjeldmark.dk: no address www.ckjeldmark.dk: no address |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| — | 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
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026061201 |
| 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 | ONE.COM A/S |
| Registered | 2012-01-02 |
| Expires | 2027-01-31 (95d) |
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 |
|---|---|---|---|
| 2026-10-26 09:46:49 | 2060ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-10-24 02:16:39 | 527ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-10-22 17:28:01 | 792ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-10-13 14:25:00 | 433ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-10-09 10:38:05 | 465ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-29 22:26:12 | 463ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-28 06:52:52 | 651ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-15 22:30:01 | 835ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-07 12:16:22 | 560ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-08-26 20:47:40 | 699ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-08-14 10:49:51 | 1393ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-07-19 05:02:31 | 857ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-07-17 04:25:40 | 897ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-07-08 14:07:23 | 1062ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-07-02 00:31:09 | 514ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-06-16 21:18:48 | 1498ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-06-16 21:13:06 | 44103ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-06-16 21:08:48 shown | 475ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-06-16 21:01:39 | 527ms | 2 NS 0 A 3 MX | 🔒 Secure |