sprogrejser.dk is a .dk domain served by 2 nameservers (ns1.krystal.uk, ns2.krystal.uk). It was registered on 4 March 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.72.2.88 is hosted by Krystal Hosting Ltd (AS12488) in United Kingdom. Mail is handled by mx1.krystal.uk, mx2.krystal.uk. The zone is not DNSSEC-signed, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.krystal.uk | 77.72.0.11 | ns1.krystal.uk | AS12488 Krystal Hosting Ltd |
| ns2.krystal.uk | 139.162.230.184 | ns2.krystal.uk | AS63949 Akamai Connected Cloud |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 77.72.2.88 | 14400s | octopus-lon.krystal.uk | AS12488 | Krystal Hosting Ltd | 77.72.0.0/21 | 🇬🇧 United Kingdom | London |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx1.krystal.uk | 185.53.56.44 185.53.56.46 |
mx1.strikemail.co.uk mx1.strikemail.co.uk |
AS12488 Krystal Hosting Ltd AS12488 Krystal Hosting Ltd |
| 20 | 3600s | mx2.krystal.uk | 185.53.56.45 185.53.56.47 |
mx2.strikemail.co.uk mx2.strikemail.co.uk |
AS12488 Krystal Hosting Ltd AS12488 Krystal Hosting Ltd |
| TXT Record |
|---|
| v=spf1 ip4:77.72.2.88 ip4:77.72.0.98 include:relay.k.io a mx ip4:77.72.6.12 ~all |
| Policy | Record (sprogrejser.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:77.72.2.88 ip4:77.72.0.98 include:relay.k.io a mx ip4:77.72.6.12 ~all |
| www CNAME | sprogrejser.dk (all on sprogrejser.dk) → 77.72.2.88 (AS12488) |
| www vs bare domain | Same network |
| Wildcard | No |
| 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.
DNS lookups: 4/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.sprogrejser.dk | aqcFcUypz2yPb9WYtq-bNbfUITlPE5voeBwapIl3kNI |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026082901 |
| Primary NS (MNAME) | ns1.krystal.uk |
| Responsible (RNAME) | admin@k-validator-octopus-lon.krystal.uk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2013-03-04 |
| Expires | 2027-03-31 (163d) |
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).
| Domain | Registrar |
|---|---|
| dreamcatcher.dk | Punktum dk A/S (direct) |
| elskov.dk | Punktum dk A/S (direct) |
| hesten.dk | Punktum dk A/S (direct) |
| macromedia.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-27 00:12:11 shown | 1719ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-12 11:46:45 | 10942ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-29 22:43:38 | 1883ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-16 19:57:57 | 7546ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-01 22:02:41 | 1252ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-18 07:36:44 | 1272ms | 2 NS 1 A 2 MX | ⚠️ Bogus |