dahlnet.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 12 March 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.228.63.11 is hosted by Altibox Danmark AS (AS214875) in Denmark. Mail is handled by mail.onlineservices.dk, mxbackup.onlineservices.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 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 |
|---|---|---|---|---|---|---|---|
| 188.228.63.11 | 43200s | 188.228.63.11.dynamic.altibox.net | AS214875 | Altibox Danmark AS | 188.228.0.0/17 | 🇩🇰 Denmark | Grindsted |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.onlineservices.dk | 159.69.83.239 2a01:4f8:c2c:403::1 |
mail.onlineservices.dk mail.onlineservices.dk |
AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH |
| 20 | 3600s | mxbackup.onlineservices.dk | 78.47.16.100 | static.100.16.47.78.clients.your-server.de | AS24940 Hetzner Online GmbH |
| TXT Record |
|---|
| v=spf1 mx -all |
| Policy | Record (dahlnet.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx -all |
| www CNAME | dahlnet.dk (all on dahlnet.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| 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: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101401 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2011-03-12 |
| Expires | 2027-03-31 (163d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 21:08:28 shown | 1157ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-24 06:09:35 | 2650ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-18 13:26:10 | 1400ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-17 11:09:08 | 9073ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-13 21:36:26 | 2125ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-14 19:59:52 | 11119ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 23:43:11 | 680ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 23:41:28 | 2607ms | 2 NS 1 A 2 MX | 🔒 Secure |