alff.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 4 October 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.129 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by alff-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns01.one.com | — | — | — |
| ns02.one.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 46.30.215.129 | — | webcluster1.webpod17-cph3.one.com | AS51468 | One.com A/S | 46.30.208.0/21 | 🇩🇰 Denmark | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:106:e:1ea0:f257:9698 | — | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| TXT Record |
|---|
| google-site-verification=zLyuc92r4xqieRTjaqT260juq73Kqm9bHLjUYr0ZcIE |
| MS=ms43768617 |
| v=spf1 include:spf.protection.outlook.com include:spfinclude.sikkermail.dk -all |
| Policy | Record (alff.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:spfinclude.sikkermail.dk -all |
| www | 46.30.215.148 2a02:2350:5:106:a4:7adc:d5d3:8bca (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network alff.dk: 46.30.215.148 2a02:2350:5:106:a4:7adc:d5d3:8bca (AS51468) www.alff.dk: 46.30.215.148 2a02:2350:5:106:a4:7adc:d5d3:8bca (AS51468) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 2/10 · 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 | 2026060401 |
| 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 | 2019-10-04 |
| Expires | 2026-10-31 (12d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-03 03:32:32 | 1160ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 02:13:30 | 872ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-07 20:02:49 | 1241ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-19 11:32:57 | 1503ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-06 13:31:46 | 5882ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-04 14:18:16 | 5403ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-28 01:07:12 | 2062ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 17:21:02 | 2732ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 07:13:17 | 2599ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 05:30:16 | 1428ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 12:39:26 shown | 727ms | 2 NS 1 A 1 MX | 🔒 Secure |