1o1.dk is a .dk domain served by 2 nameservers (titan.ns.cloudflare.com, ulla.ns.cloudflare.com). It was registered on 23 March 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.53.238 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by .. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 104.21.53.238 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.220.5 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3035::ac43:dc05 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:35ee | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.53.238,172.67.220.5 ech=AEX+DQBBiQAgACC3BPJXIqV1zmOt5kr4XVRQchnHDi6IskbFXftEL6eWZAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:dc05,2606:4700:3037::6815:35ee |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve 1o1.dk: 188.114.96.1 188.114.97.1 2606:4700:3035::ac43:dc05 2606:4700:3037::6815:35ee (AS13335) (all like this)www.1o1.dk: no address |
| Wildcard | No |
| 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 | 2407266041 |
| Primary NS (MNAME) | titan.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2026-03-23 |
| Expires | 2027-03-22 (156d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 19:03:17 | 449ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-04 18:47:02 | 487ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-17 21:13:16 | 1469ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-18 01:49:46 | 1991ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-16 23:22:19 | 2752ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-06 19:36:49 | 925ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-20 11:25:37 | 1069ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-27 12:23:50 | 1452ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-26 11:56:22 shown | 898ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-24 20:24:16 | 869ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-22 07:25:13 | 1170ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 23:39:07 | 444ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-19 17:35:25 | 544ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-18 17:00:24 | 3094ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-18 08:27:15 | 830ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-16 12:38:08 | 503ms | 2 NS 2 A 0 MX | 🔓 Insecure |