carsteng.dk is a .dk domain served by 3 nameservers (ns1.dns.services, ns2.dns.services, ns3.dns.services). It was registered on 3 May 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.40.255.44 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mail2.carsteng.dk. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 188.40.255.44 | 7200s | static.44.255.40.188.clients.your-server.de | AS24940 | Hetzner Online GmbH | 188.40.0.0/16 | 🇩🇪 Germany | Falkenstein |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 7200s | mail2.carsteng.dk | 136.243.215.10 | mail2.carsteng.dk | AS24940 Hetzner Online GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | mail2.carsteng.dk → 136.243.215.10 |
| 🔶 Autoconfig | mail2.carsteng.dk → 136.243.215.10 |
| TXT Record |
|---|
| google-site-verification=O9LTOMOa2-BcpmjcdMbsu-GqUQbgn27ordkRc53jgjk |
| v=spf1 a mx include:spf.postal.carsteng.dk ~all |
| Policy | Record (carsteng.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx include:spf.postal.carsteng.dk ~all |
| www CNAME | test.carsteng.dk (all on carsteng.dk) → 188.40.255.44 (AS24940) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| dkim | — | 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 |
|---|---|---|
| CNAME | _acme-challenge.carsteng.dk | test.carsteng.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2025082714 |
| Primary NS (MNAME) | ns1.dns.services |
| Responsible (RNAME) | post@dns.services |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1814400s |
| Minimum (neg-cache TTL) | 7200s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2010-05-03 |
| Expires | 2027-05-31 (218d) |
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 |
|---|---|
| bi-tikken.dk | Punktum dk A/S (direct) |
| itkon.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 09:48:32 | 718ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 18:49:00 | 1158ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 18:16:55 | 943ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-22 09:57:55 | 802ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-10 20:46:10 | 1655ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-29 02:24:49 | 921ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 03:17:19 shown | 1815ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 16:25:25 | 1241ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 01:25:20 | 1125ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 21:50:16 | 28839ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 19:44:31 | 1868ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 19:30:19 | 872ms | 3 NS 1 A 1 MX | 🔒 Secure |