referenceprojekt.dk is a .dk domain served by 2 nameservers (coco.ns.cloudflare.com, houston.ns.cloudflare.com). It was registered on 12 February 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.78.134 is hosted by Cloudflare, Inc. (AS13335). 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 |
|---|---|---|---|---|---|---|---|
| 104.21.78.134 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.222.30 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::ac43:de1e | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::6815:4e86 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.78.134,172.67.222.30 ech=AEX+DQBBDgAgACAh6n1rk5bbnfqqxFJXCTamusgQzvJWCbIxS00bn7G4BAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:de1e,2606:4700:3035::6815:4e86 |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (referenceprojekt.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| www | 104.21.78.134 172.67.222.30 2606:4700:3032::ac43:de1e 2606:4700:3035::6815:4e86 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network referenceprojekt.dk: 104.21.78.134 172.67.222.30 2606:4700:3032::ac43:de1e 2606:4700:3035::6815:4e86 (AS13335) www.referenceprojekt.dk: 104.21.78.134 172.67.222.30 2606:4700:3032::ac43:de1e 2606:4700:3035::6815:4e86 (AS13335) |
| Wildcard | No |
DNS lookups: 0/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.referenceprojekt.dk | P2Ku0JJvVKzzRdugYi-hm6q9h1aPWoonqkoEw9_xl6Q |
| TXT | _acme-challenge.referenceprojekt.dk | epjd7yxO8O7zzXWfnjCpS3b9BaQ5ie1Ia8Yw6pvHJ0c |
| 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 | 2413801116 |
| Primary NS (MNAME) | coco.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Nordisk Media Utveckling AB |
| Registered | 2015-02-12 |
| Expires | 2027-02-28 (132d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 17:02:59 | 1873ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-02 15:12:06 | 412ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-30 02:34:58 | 433ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-07 08:24:09 | 689ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-06 02:13:31 | 484ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-04 02:06:59 shown | 491ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-28 08:47:57 | 2617ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-08 09:36:50 | 1410ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-20 21:37:20 | 24920ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-12 00:18:42 | 8697ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-01 22:02:25 | 1459ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-22 01:21:01 | 1172ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 11:48:42 | 638ms | 2 NS 2 A 0 MX | 🔓 Insecure |