oldenburg.dk is a .dk domain served by 2 nameservers (ns3.nordicway.dk, ns4.nordicway.dk). It was registered on 8 December 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 49.12.171.172 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by oldenburg.dk. The zone is DNSSEC-signed and validates, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 49.12.171.172 | 3600s | cp12.nordicway.dk | AS24940 | Hetzner Online GmbH | 49.12.0.0/15 | 🇩🇪 Germany | Falkenstein |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | oldenburg.dk | 2a01:4f8:2190:17c0::2 49.12.171.172 |
cp12.nordicway.dk cp12.nordicway.dk |
AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:4f8:2190:17c0::2 | 3600s | cp12.nordicway.dk | AS24940 | Hetzner Online GmbH | 2a01:4f8:0:0:0:0:0:0/31 | 🇩🇪 Germany | Falkenstein |
| TXT Record |
|---|
| v=spf1 ip4:49.12.171.172 +a +mx +ip4:148.251.244.167 include:relay.mailchannels.net ~all |
| Policy | Record (oldenburg.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:49.12.171.172 +a +mx +ip4:148.251.244.167 include:relay.mailchannels.net ~all |
| Policy | Record (_dmarc.oldenburg.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:09a8023d@in.mailhardener.com,mailto:rep@oldenburg.dk;ruf=mailto:rep@oldenburg.dk |
| www CNAME | oldenburg.dk (all on oldenburg.dk) |
| www vs bare domain | Same network oldenburg.dk: 49.12.171.172 2a01:4f8:2190:17c0::2 (AS24940) www.oldenburg.dk: 49.12.171.172 2a01:4f8:2190:17c0::2 (AS24940) |
| Wildcard | No |
| Denial of existence | NSEC3 · 7 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| 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| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.oldenburg.dk | JC454PayeanAHTg9gJPn-fr6HMxad_4ba3esOjhf0Hs |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100501 |
| Primary NS (MNAME) | ns3.nordicway.dk |
| Responsible (RNAME) | server@nordicway.dk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | nordicway ApS |
| Registered | 1997-12-08 |
| Expires | 2033-12-31 (2622d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-05 19:46:28 shown | 1637ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 19:13:02 | 604ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 21:47:52 | 1026ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-25 17:56:34 | 945ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-08 04:49:14 | 1290ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 08:51:38 | 887ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 13:24:58 | 8858ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 13:01:55 | 970ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 07:11:48 | 1088ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 13:14:58 | 1831ms | 2 NS 1 A 1 MX | 🔒 Secure |