holocron.dk is a .dk domain served by 2 nameservers (dora.ns.cloudflare.com, johnathan.ns.cloudflare.com). It was registered on 21 March 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.36.205 is hosted by Cloudflare, Inc. (AS13335). The zone is DNSSEC-signed and validates, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.36.205 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.199.76 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.36.205 |
| 🔶 Autoconfig | 172.67.199.76 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::ac43:c74c | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3034::6815:24cd | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.36.205,172.67.199.76 ech=AEX+DQBBcwAgACBHsaUCJ1dxRuGx7OGawJ1o7YPK6FUTyqwDJ3y3sJG9IgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:c74c,2606:4700:3034::6815:24cd |
| Policy | Record (_dmarc.holocron.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; pct=100; rua=mailto:09391261803e40cebb1130b202dfbf54@dmarc-reports.cloudflare.net,mailto:re+oybobsg17xq@dmarc.postmarkapp.com; sp=none; aspf=r; |
| www | 104.21.36.205 172.67.199.76 2606:4700:3033::ac43:c74c 2606:4700:3034::6815:24cd (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network holocron.dk: 104.21.36.205 172.67.199.76 2606:4700:3033::ac43:c74c 2606:4700:3034::6815:24cd (AS13335) www.holocron.dk: 104.21.36.205 172.67.199.76 2606:4700:3033::ac43:c74c 2606:4700:3034::6815:24cd (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.holocron.dk | 2R0kL4kIrt2uIL5Wme2npPo2i6tt6mIRSVB1rUkEG5A |
| TXT | _acme-challenge.holocron.dk | rAhmikZX_AmO9_uq9rvQBIg5kGG9t4xBrRJoShNxVP8 |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2413065478 |
| Primary NS (MNAME) | dora.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 | 2012-03-21 |
| Expires | 2033-03-31 (2355d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 20:26:55 | 680ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-10-06 20:23:57 | 464ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-28 19:21:30 | 582ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-14 03:59:17 | 968ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-07 01:58:35 | 1135ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-01 13:22:59 | 597ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-27 01:47:31 | 518ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-26 01:05:02 shown | 834ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-20 08:21:36 | 9933ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-01 03:00:09 | 991ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-27 09:44:06 | 1475ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-02 17:56:17 | 1896ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-26 18:21:51 | 819ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-25 19:22:03 | 958ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-17 13:21:49 | 2768ms | 2 NS 2 A 0 MX | 🔒 Secure |