sby.dk is a .dk domain served by 2 nameservers (dana.ns.cloudflare.com, peyton.ns.cloudflare.com). It was registered on 12 February 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.58.222 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.unoeuro.com. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 104.21.58.222 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.209.23 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx.unoeuro.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.209.23 |
| 🔶 Autoconfig | 104.21.58.222 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::ac43:d117 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::6815:3ade | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.58.222,172.67.209.23 ech=AEX+DQBBtAAgACDK155bAXGLBzsayA3lZo3HC5WSmvKberQQtjQBuaGTWwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:d117,2606:4700:3035::6815:3ade |
| www | 104.21.58.222 172.67.209.23 2606:4700:3033::ac43:d117 2606:4700:3035::6815:3ade (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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 | 2416896029 |
| Primary NS (MNAME) | dana.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 | 2001-02-12 |
| Expires | 2027-03-31 (164d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 21:50:07 shown | 897ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 21:02:58 | 742ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-29 20:51:44 | 574ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-10 01:34:50 | 10007ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-08 06:51:58 | 1464ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-28 19:02:30 | 808ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 01:15:53 | 761ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-24 13:35:38 | 1131ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 00:33:17 | 988ms | 2 NS 2 A 1 MX | ⚠️ Bogus |