borgmestersønderborg.dk is a .dk domain served by 2 nameservers (art.ns.cloudflare.com, chloe.ns.cloudflare.com). It was registered on 3 March 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.51.14 is hosted by Cloudflare, Inc. (AS13335). The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.51.14 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.216.160 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:330e | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:d8a0 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.51.14,172.67.216.160 ech=AEX+DQBB6gAgACCmWsfKnxBIRMinjBvNZmTBCIAk0G6sxXmwwU+YJYkYFwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:330e,2606:4700:3037::ac43:d8a0 |
| www | 104.21.51.14 172.67.216.160 2606:4700:3031::ac43:d8a0 2606:4700:3036::6815:330e (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network borgmestersønderborg.dk: 104.21.51.14 172.67.216.160 2606:4700:3031::ac43:d8a0 2606:4700:3036::6815:330e (AS13335) www.borgmestersønderborg.dk: 104.21.51.14 172.67.216.160 2606:4700:3031::ac43:d8a0 2606:4700:3036::6815:330e (AS13335) |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxdomain |
| Field | Value |
|---|---|
| Serial | 2404670854 |
| Primary NS (MNAME) | art.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 | 2021-03-03 |
| Expires | 2027-03-31 (159d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-22 08:02:56 | 423ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-16 11:43:39 | 544ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-13 05:58:34 | 471ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-12 03:35:08 | 691ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-11 03:16:11 | 431ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-14 16:02:36 | 671ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-13 15:45:49 | 2695ms | 2 NS 2 A 0 MX | ❓ Unknown |
| 2026-08-12 10:46:27 | 3157ms | 2 NS 2 A 0 MX | ❓ Unknown |
| 2026-07-18 19:32:25 | 17261ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-08 13:34:24 | 32873ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-30 18:22:43 | 785ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-28 15:22:43 | 1856ms | 2 NS 2 A 0 MX | ❓ Unknown |
| 2026-06-26 09:00:26 | 783ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-23 04:56:04 | 390ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 15:56:50 | 1230ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-20 15:13:39 | 364ms | 0 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-20 05:53:29 shown | 4370ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-19 04:37:28 | 331ms | 0 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-16 16:05:45 | 583ms | 2 NS 2 A 0 MX | 🔒 Secure |