optimal-minimal.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 17 August 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.90.114.110 is hosted by Fab:IT ApS (AS45032) in Denmark. Mail is handled by mailscan01.fab-it.dk, mailscan02.fab-it.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 |
|---|---|---|---|---|---|---|---|
| 93.90.114.110 | 600s | zabbix01.fab-it.dk | AS45032 | Fab:IT ApS | 93.90.112.0/20 | 🇩🇰 Denmark | — |
| 93.90.114.111 | 600s | backup07.fab-it.dk | AS45032 | Fab:IT ApS | 93.90.112.0/20 | 🇩🇰 Denmark | — |
| 93.90.114.112 | 600s | — | AS45032 | Fab:IT ApS | 93.90.112.0/20 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 7200s | mailscan01.fab-it.dk | 93.90.114.120 93.90.114.122 |
se01.fab-it.dk se02.fab-it.dk |
AS45032 Fab:IT ApS AS45032 Fab:IT ApS |
| 10 | 7200s | mailscan02.fab-it.dk | 93.90.114.121 93.90.114.123 |
se01-2.fab-it.dk se02-2.fab-it.dk |
AS45032 Fab:IT ApS AS45032 Fab:IT ApS |
| TXT Record |
|---|
| v=spf1 mx a include:spf.se.fab-it.dk -all |
| Policy | Record (optimal-minimal.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx a include:spf.se.fab-it.dk -all |
| www CNAME | mautic.optimal-minimal.dk (all on optimal-minimal.dk) |
| www vs bare domain | Same network optimal-minimal.dk: 93.90.114.110 93.90.114.111 93.90.114.112 (AS45032) www.optimal-minimal.dk: 93.90.114.110 93.90.114.111 93.90.114.112 (AS45032) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| 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: 5/10 · 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 | 2026101101 |
| 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 | 2017-08-17 |
| Expires | 2027-08-31 (318d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 02:53:19 shown | 1448ms | 2 NS 3 A 2 MX | 🔒 Secure |
| 2026-09-29 18:45:13 | 1379ms | 2 NS 3 A 2 MX | 🔒 Secure |
| 2026-09-26 06:38:22 | 764ms | 2 NS 3 A 2 MX | 🔒 Secure |
| 2026-09-10 21:02:23 | 576ms | 2 NS 3 A 2 MX | 🔒 Secure |
| 2026-08-12 05:31:30 | 1394ms | 2 NS 3 A 2 MX | 🔒 Secure |
| 2026-07-17 23:21:14 | 3895ms | 2 NS 3 A 2 MX | 🔒 Secure |
| 2026-07-11 23:18:22 | 975ms | 2 NS 3 A 2 MX | 🔒 Secure |
| 2026-06-21 14:55:04 | 887ms | 2 NS 3 A 2 MX | 🔒 Secure |
| 2026-06-18 06:02:59 | 778ms | 2 NS 3 A 2 MX | 🔒 Secure |