isola.dk is a .dk domain served by 2 nameservers (aspen.ns.cloudflare.com, ernest.ns.cloudflare.com). It was registered on 31 January 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.68.181 | 300s | — | AS13335 | — | — | — | — |
| 172.67.197.141 | 300s | — | AS13335 | — | — | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::ac43:c58d | 300s | — | AS13335 | — | — | — | — |
| 2606:4700:3036::6815:44b5 | 300s | — | AS13335 | — | — | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.68.181,172.67.197.141 ech=AEX+DQBBCgAgACCYTxyPJtOtgfdSA+yFDR2rcN1nsMaFCX3OPBNBu3tpHwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:c58d,2606:4700:3036::6815:44b5 |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (isola.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.isola.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; |
| www | 104.21.68.181 172.67.197.141 2606:4700:3032::ac43:c58d 2606:4700:3035::6815:44b5 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 0/10 · 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 | 2405895209 |
| Primary NS (MNAME) | aspen.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1996-01-31 |
| Expires | 2027-03-31 (159d) |
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 |
|---|---|
| elektro-isola.dk | Punktum dk A/S (direct) |
| elektroisola.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 15:59:47 | 777ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-29 15:45:29 | 956ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-27 11:15:15 | 726ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-24 14:46:29 | 611ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-23 13:47:20 | 1219ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-07 18:09:58 | 1213ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-14 07:51:06 | 963ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-26 15:04:19 | 881ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-21 01:47:38 | 16662ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-01 07:30:16 | 941ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-27 04:23:20 | 686ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-26 14:42:44 | 1270ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-25 03:17:48 | 1953ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-22 08:17:05 shown | 1190ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-21 14:41:44 | 1180ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 11:55:38 | 1418ms | 2 NS 2 A 0 MX | 🔒 Secure |