crussis.dk is a .dk domain served by 2 nameservers (ns2.blueboard.cz, shinzon.blueboard.cz). It was registered on 14 March 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.11.249.139 is hosted by CASABLANCA INT a.s. (AS15685) in Czechia. Mail is handled by mx.blueboard.cz. 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 |
|---|---|---|---|---|---|---|---|
| 217.11.249.139 | 38400s | krios.blueboard.cz | AS15685 | CASABLANCA INT a.s. | 217.11.248.0/23 | 🇨🇿 Czechia | Prague |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx.blueboard.cz | 2001:1528:240::ca 81.0.209.130 |
mx.blueboard.cz mx.blueboard.cz |
AS15685 CASABLANCA INT a.s. AS15685 CASABLANCA INT a.s. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 217.11.249.139 |
| 🔶 Autoconfig | 217.11.249.139 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2001:1528:240::15 | 38400s | krios.blueboard.cz | AS15685 | CASABLANCA INT a.s. | 2001:1528:0:0:0:0:0:0/32 | 🇨🇿 Czechia | — |
| TXT Record |
|---|
| v=spf1 a mx include:spf.blueboard.cz -all |
| Policy | Record (crussis.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx include:spf.blueboard.cz -all |
| Policy | Record (_dmarc.crussis.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none |
| www | 217.11.249.139 2001:1528:240::15 (AS15685) (address records, no CNAME) |
| www vs bare domain | Same network crussis.dk: 217.11.249.139 2001:1528:240::15 (AS15685) www.crussis.dk: 217.11.249.139 2001:1528:240::15 (AS15685) |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 3/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2023121622 |
| Primary NS (MNAME) | shinzon.blueboard.cz |
| Responsible (RNAME) | hostmaster@blueboard.cz |
| Refresh | 10800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 7200s |
| Field | Value |
|---|---|
| Registrar | Gransy s.r.o. |
| Registered | 2024-03-14 |
| Expires | 2027-03-13 (140d) |
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 |
|---|---|---|---|
| 2026-10-23 14:55:23 shown | 1040ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-22 12:38:36 | 1027ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-20 21:25:31 | 1051ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-19 07:56:09 | 903ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-16 05:46:37 | 9471ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-15 01:57:50 | 2756ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-14 00:31:43 | 5326ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-11 20:49:11 | 7308ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-10 19:11:33 | 3321ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-07 15:24:51 | 1818ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-06 21:15:36 | 8329ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-05 20:29:03 | 2964ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-04 20:18:06 | 1761ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-02 20:07:38 | 986ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-01 20:06:34 | 4104ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 20:01:23 | 2739ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-28 06:43:30 | 2430ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-27 06:25:35 | 4727ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-25 05:49:43 | 3831ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 05:24:21 | 2581ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-23 02:22:15 | 5762ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-19 05:35:26 | 1342ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-10 19:27:15 | 1976ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-03 17:19:06 | 11998ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-30 22:49:37 | 7980ms | 2 NS 1 A 1 MX | 🔓 Insecure |