peterba.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). Mail is handled by peterba-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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.
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.40 |
| TXT Record |
|---|
| MS=ms52817926 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (peterba.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.peterba.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@Peterba.dk |
| www CNAME | elefant.dynamicsystems.dk (all on dynamicsystems.dk) ⚠ Dangling: the CNAME target does not exist. If that name can be claimed (an unregistered domain, or a free name on a hosting platform), whoever claims it controls www.peterba.dk |
| Wildcard | No |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-peterba-dk._domainkey.denform.w-v1.dkim.mail.microsoft | 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 | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026011501 |
| Primary NS (MNAME) | ns.dandomain.dk |
| Responsible (RNAME) | hostmaster@dandomain.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-26 02:23:21 | 1051ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-14 23:31:29 | 1255ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-03 15:23:03 | 792ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-01 18:09:10 shown | 1446ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-31 10:50:35 | 1282ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-07 04:47:41 | 17250ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-20 15:56:22 | 1214ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-17 13:27:38 | 932ms | 2 NS 0 A 1 MX | 🔒 Secure |