hydrologidag.dk is a .dk domain served by 2 nameservers (fatima.ns.cloudflare.com, ryan.ns.cloudflare.com). It was registered on 24 September 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 23.88.5.125 is hosted by Hetzner Online GmbH (AS24940) in Germany. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 23.88.5.125 | 300s | static.125.5.88.23.clients.your-server.de | AS24940 | Hetzner Online GmbH | 23.88.0.0/17 | 🇩🇪 Germany | Falkenstein |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | hydrologidag.dk → 23.88.5.125 |
| 🔶 Autoconfig | hydrologidag.dk → 23.88.5.125 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:4f8:272:3c81::2 | 300s | — | AS24940 | Hetzner Online GmbH | 2a01:4f8:0:0:0:0:0:0/31 | 🇩🇪 Germany | Falkenstein |
| www CNAME | hydrologidag.dk (all on hydrologidag.dk) |
| www vs bare domain | Same network hydrologidag.dk: 23.88.5.125 2a01:4f8:272:3c81::2 (AS24940) www.hydrologidag.dk: 23.88.5.125 2a01:4f8:272:3c81::2 (AS24940) |
| 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 |
|---|---|---|
| CNAME | _acme-challenge.hydrologidag.dk | hydrologidag.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2416432485 |
| Primary NS (MNAME) | fatima.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 | 2010-09-24 |
| Expires | 2027-09-30 (348d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-02 21:23:09 shown | 1836ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-23 16:57:21 | 878ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-19 10:18:40 | 1090ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-12 08:11:49 | 889ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-16 15:58:08 | 8852ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-22 19:39:30 | 2873ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-21 09:09:58 | 962ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-30 08:35:28 | 878ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-24 05:53:26 | 1212ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-23 00:06:46 | 1106ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 01:57:48 | 1569ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-17 11:59:20 | 630ms | 2 NS 1 A 0 MX | 🔒 Secure |