kronborg-crossfit.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 26 May 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 145.223.87.229 is hosted by Hostinger International Limited (AS47583) in Germany. Mail is handled by aspmx.l.google.com, smtp.google.com and 4 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 |
|---|---|---|---|---|---|---|---|
| 145.223.87.229 | 3600s | — | AS47583 | Hostinger International Limited | 145.223.80.0/20 | 🇩🇪 Germany | Frankfurt am Main |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:4780:3f:1906:0:d73:960e:10 | 3600s | — | AS47583 | Hostinger International Limited | 2a02:4780:20:0:0:0:0:0/43 | 🇩🇪 Germany | Frankfurt am Main |
| TXT Record |
|---|
| v=spf1 include:_spf.google.com ~all |
| Policy | Record (kronborg-crossfit.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.google.com ~all |
| Policy | Record (_dmarc.kronborg-crossfit.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | kronborg-crossfit.dk (all on kronborg-crossfit.dk) |
| www vs bare domain | Same network kronborg-crossfit.dk: 145.223.87.229 2a02:4780:3f:1906:0:d73:960e:10 (AS47583) www.kronborg-crossfit.dk: 145.223.87.229 2a02:4780:3f:1906:0:d73:960e:10 (AS47583) |
| 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 | fully validated |
| Field | Value |
|---|---|
| Serial | 2026091801 |
| 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 | 2023-05-26 |
| Expires | 2027-05-25 (219d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 02:09:30 shown | 755ms | 2 NS 1 A 6 MX | 🔒 Secure |
| 2026-09-26 15:59:14 | 903ms | 2 NS 1 A 6 MX | 🔒 Secure |
| 2026-09-24 15:47:22 | 1058ms | 2 NS 1 A 6 MX | 🔒 Secure |
| 2026-09-14 12:45:08 | 2060ms | 2 NS 1 A 6 MX | 🔓 Insecure |
| 2026-09-07 10:50:37 | 2994ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-08-27 21:53:23 | 1061ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-08-26 21:05:13 | 2898ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-08-20 04:44:52 | 9971ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-08-14 01:16:15 | 5625ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-08-09 15:37:31 | 10236ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-08-01 16:04:13 | 10662ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-07-23 12:36:31 | 10310ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-07-17 03:02:48 | 1469ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-07-10 00:28:30 | 10637ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-07-03 13:42:42 | 966ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-06-27 02:11:22 | 1288ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-06-17 14:41:28 | 1967ms | 2 NS 1 A 5 MX | 🔓 Insecure |