iskrystal.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 16 August 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mailgate.iskrystal.dk. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | mailgate.iskrystal.dk | 83.89.157.21 | — | AS3292 TDC Holding A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | wh-1.web.sonnit.dk |
| 🔶 Autoconfig | wh-1.web.sonnit.dk |
| www CNAME | wh-1.web.sonnit.dk (all on sonnit.dk) ⚠ Dangling: the CNAME target does not exist. If that name can be claimed (an unregistered domain, or a free name on a hosting platform), whoever claims it controls www.iskrystal.dk |
| www vs bare domain | Neither resolves iskrystal.dk: no address www.iskrystal.dk: no address |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.iskrystal.dk | wh-1.web.sonnit.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026100901 |
| 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 | Punktum dk A/S (direct) |
| Registered | 2005-08-16 |
| Expires | 2027-08-31 (313d) |
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 |
|---|---|---|---|
| 2026-10-20 20:23:26 shown | 1139ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-15 06:32:31 | 719ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-09 18:01:21 | 2022ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-08 14:04:14 | 1005ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-30 11:05:23 | 527ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-30 02:05:27 | 476ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-26 10:10:12 | 712ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-24 10:01:25 | 676ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-11 19:32:19 | 5610ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-10 21:13:03 | 6783ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-20 15:05:43 | 809ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-18 08:36:21 | 972ms | 2 NS 0 A 1 MX | 🔒 Secure |