coolhost.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 1 July 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 86.52.31.241 is hosted by Sinal A/S (AS39642) in Denmark. Mail is handled by mxa.eu.mailgun.org, mxb.eu.mailgun.org. The zone is DNSSEC-signed and validates, has no 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 86.52.31.241 | 3600s | 86-52-31-241.norlyscustomer.net | AS39642 | Sinal A/S | 86.52.0.0/16 | 🇩🇰 Denmark | Randers |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | mxa.eu.mailgun.org | 34.111.130.244 | 244.130.111.34.bc.googleusercontent.com | AS396982 Google LLC |
| 10 | 600s | mxb.eu.mailgun.org | 34.111.130.244 | 244.130.111.34.bc.googleusercontent.com | AS396982 Google LLC |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 86.52.31.241 |
| 🔶 Autoconfig | 86.52.31.241 |
| TXT Record |
|---|
| v=spf1 include:mailgun.org ~all |
| Policy | Record (coolhost.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:mailgun.org ~all |
| www | 89.150.135.160 (AS203953) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 5/10 · 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 | 2026052102 |
| Primary NS (MNAME) | ns1.curanet.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | CURANET A/S |
| Registered | 2008-07-01 |
| Expires | 2027-07-31 (284d) |
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 |
|---|---|
| krabnet.dk | CURANET A/S |
| skylink.dk | CURANET A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-10 16:04:56 | 628ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-03 16:28:10 | 818ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-07 00:08:45 | 1551ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-02 19:41:25 | 961ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-05 16:51:54 | 17082ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-28 17:33:58 | 1704ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-28 00:34:01 | 2102ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-25 16:45:46 | 1686ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-23 04:20:37 shown | 736ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-22 10:29:20 | 8671ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-21 16:19:40 | 904ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 19:53:14 | 936ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 22:16:19 | 662ms | 2 NS 1 A 2 MX | 🔒 Secure |