ai0.dk is a .dk domain served by 2 nameservers (abby.ns.cloudflare.com, dan.ns.cloudflare.com). It was registered on 7 November 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.62.145 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.gigahost.dk, mx2.gigahost.dk and 1 more. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.62.145 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.136.170 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 1 | 60s | mx1.gigahost.dk | 46.183.139.11 | mx1.gigahost.dk | AS47292 Sentia Denmark A/S |
| 5 | 60s | mx2.gigahost.dk | 46.183.139.12 | mx2.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 60s | mx3.gigahost.dk | 46.183.139.13 | mx3.gigahost.dk | AS47292 Sentia Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.136.170 |
| 🔶 Autoconfig | 104.21.62.145 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::ac43:88aa | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:3e91 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.62.145,172.67.136.170 ech=AEX+DQBBXQAgACDazvEC7H8a2x5zjPPsTaNfcWGi3cLWN7LBNx4+N3/xWQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:88aa,2606:4700:3037::6815:3e91 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | autodiscover.gigahost.dk |
| TXT Record |
|---|
| google-site-verification=wDsXQPIG5YklwB_Vm84nt-OcwH0quZ-A1zgYERWuD4A |
| spf2.0/pra |
| v=spf1 mx include:spf.gigahost.dk -all |
| Policy | Record (ai0.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx include:spf.gigahost.dk -all |
| Policy | Record (_dmarc.ai0.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; |
| www | 104.21.62.145 172.67.136.170 2606:4700:3030::ac43:88aa 2606:4700:3037::6815:3e91 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 2/10 · policy: -all
No problems found| 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 | 2413548705 |
| Primary NS (MNAME) | abby.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 | 2025-11-07 |
| Expires | 2026-11-06 (20d) |
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 |
|---|---|
| forsejt.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 12:43:00 | 512ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-30 20:54:01 | 788ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-24 22:19:44 shown | 654ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-31 14:48:55 | 622ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-29 01:36:02 | 743ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-03 20:27:16 | 5445ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-25 02:06:33 | 2882ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-16 13:20:19 | 1409ms | 2 NS 2 A 3 MX | 🔓 Insecure |