123fiber.dk is a .dk domain served by 2 nameservers (dom.ns.cloudflare.com, isabel.ns.cloudflare.com). It was registered on 1 March 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.18.26.189 is hosted by Cloudflare, Inc. (AS13335). 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| dom.ns.cloudflare.com | — | — | — |
| isabel.ns.cloudflare.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.18.26.189 | — | — | AS13335 | Cloudflare, Inc. | 104.16.0.0/14 | — | — |
| 104.18.27.189 | — | — | AS13335 | Cloudflare, Inc. | 104.16.0.0/14 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700::6812:1abd | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:0:0:0:0:0:0/43 | 🇺🇸 United States | — |
| 2606:4700::6812:1bbd | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:0:0:0:0:0:0/43 | 🇺🇸 United States | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h2" ipv4hint=104.18.26.189,104.18.27.189 ipv6hint=2606:4700::6812:1abd,2606:4700::6812:1bbd |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (123fiber.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.123fiber.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; |
| www | 104.18.26.189 104.18.27.189 2606:4700::6812:1abd 2606:4700::6812:1bbd (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network 123fiber.dk: 104.18.26.189 104.18.27.189 2606:4700::6812:1abd 2606:4700::6812:1bbd (AS13335) www.123fiber.dk: 104.18.26.189 104.18.27.189 2606:4700::6812:1abd 2606:4700::6812:1bbd (AS13335) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Delete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 CDNSKEY |
DNS lookups: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2406964692 |
| Primary NS (MNAME) | dom.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Eurodns S.A |
| Registered | 2006-03-01 |
| Expires | 2027-03-31 (165d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-16 18:46:25 | 659ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-09 10:28:32 | 780ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-06 07:22:07 | 2439ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-30 06:28:12 | 482ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-19 08:26:25 | 716ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-22 07:34:55 | 3317ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-21 07:22:10 | 5038ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-20 04:48:09 | 1336ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-19 03:05:58 | 5505ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-18 00:07:16 | 2860ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-11 03:36:13 | 5084ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-25 19:14:05 | 9608ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-03 10:02:20 | 8706ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-23 21:06:50 | 3981ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-22 09:34:42 | 1221ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-18 17:57:25 | 3307ms | 2 NS 2 A 0 MX | ⚠️ Bogus |
| 2026-06-16 13:29:47 | 5548ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-16 13:13:03 shown | 552ms | 2 NS 2 A 0 MX | 🔓 Insecure |