coool.dk is a .dk domain served by 2 nameservers (ns1.ts-web.dk, ns2.ts-web.dk). It was registered on 11 July 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 86.52.55.218 is hosted by Sinal A/S (AS39642) in Denmark. Mail is handled by mail.coool.dk. The zone is not DNSSEC-signed, publishes a 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.ts-web.dk | 172.104.252.26 | mail.coool.dk | AS63949 Akamai Connected Cloud |
| ns2.ts-web.dk | 212.71.248.134 | 212-71-248-134.ip.linodeusercontent.com | AS63949 Akamai Connected Cloud |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 86.52.55.218 | 100s | 86-52-55-218.norlyscustomer.net | AS39642 | Sinal A/S | 86.52.0.0/16 | 🇩🇰 Denmark | Viborg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 60s | mail.coool.dk | 172.104.252.26 | mail.coool.dk | AS63949 Akamai Connected Cloud |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 86.52.55.218 |
| 🔶 Autoconfig | 86.52.55.218 |
| TXT Record |
|---|
| google-site-verification=B3yySwPMiyzUSC4cPgQex4HlPEWsMgQ5CpTrVg0by4s |
| v=spf1 mx a:mail.coool.dk -all |
| Policy | Record (coool.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx a:mail.coool.dk -all |
| Policy | Record (_dmarc.coool.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:s@coool.dk; ruf=mailto:s@coool.dk; adkim=s; aspf=s |
| www | 86.52.55.218 (AS39642) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| dkim | — | RSA · ~1024 bit below 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: 2/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.coool.dk | 9y_QvHesG7oXitNFjdYqUBk6wuCtgGmXy7L4l1vy700 |
| 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 | 2018011689 |
| Primary NS (MNAME) | ns1.ts-web.dk |
| Responsible (RNAME) | so@coool.dk |
| Refresh | 3600s |
| Retry | 600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2001-07-11 |
| Expires | 2027-09-30 (348d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-06 17:37:54 | 1280ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-15 06:43:19 shown | 1461ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-08 14:21:14 | 2379ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 22:15:12 | 585ms | 2 NS 1 A 1 MX | 🔓 Insecure |