problemskak.dk is a .dk domain served by 2 nameservers (ns1.dnshotel.dk, ns2.dnshotel.dk). It was registered on 8 August 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 49.12.83.125 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by problemskak.dk. 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 |
|---|---|---|---|---|---|---|---|
| 49.12.83.125 | — | re03.azehosting.net | AS24940 | Hetzner Online GmbH | 49.12.0.0/15 | 🇩🇪 Germany | Falkenstein |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | — | problemskak.dk | 2a01:4f8:2200:4382::2 49.12.83.125 |
re03.azehosting.net re03.azehosting.net |
AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:4f8:2200:4382::2 | — | re03.azehosting.net | AS24940 | Hetzner Online GmbH | 2a01:4f8:0:0:0:0:0:0/31 | 🇩🇪 Germany | Falkenstein |
| TXT Record |
|---|
| v=spf1 a mx +ip4:195.201.243.87 +include:relay.mailchannels.net ~all |
| Policy | Record (problemskak.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx +ip4:195.201.243.87 +include:relay.mailchannels.net ~all |
| www CNAME | problemskak.dk (all on problemskak.dk) |
| www vs bare domain | Same network problemskak.dk: 49.12.83.125 2a01:4f8:2200:4382::2 (AS24940) www.problemskak.dk: 49.12.83.125 2a01:4f8:2200:4382::2 (AS24940) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 3/10 · policy: ~all
No problems found| 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 | 2026051001 |
| Primary NS (MNAME) | ns1.dnshotel.dk |
| Responsible (RNAME) | lars@alphasite.dk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2004-08-08 |
| Expires | 2027-08-31 (315d) |
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).
| Domain | Registrar |
|---|---|
| bamsesdata.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 23:59:37 | 693ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 07:00:17 | 755ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-21 04:18:16 | 9601ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-11 20:15:54 | 817ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-27 15:56:55 | 13623ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-26 15:18:59 | 4857ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-20 00:41:34 | 13624ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-16 16:14:48 | 4872ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-12 02:58:57 | 1008ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-02 12:24:28 | 1119ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-26 02:46:49 | 7291ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 11:14:26 | 6730ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 13:07:36 shown | 2083ms | 2 NS 1 A 1 MX | 🔓 Insecure |