jacobsson.dk is a .dk domain served by 3 nameservers (ns1.dns.services, ns2.dns.services, ns3.dns.services). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 20.50.2.56 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by jacobsson-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 20.50.2.56 | — | — | AS8075 | Microsoft Corporation | 20.48.0.0/12 | 🇳🇱 The Netherlands | Amsterdam |
| TXT Record |
|---|
| MS=ms91976589 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (jacobsson.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| www | 20.50.2.56 (AS8075) (address records, no CNAME) |
| 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 |
DNS lookups: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026022310 |
| Primary NS (MNAME) | ns1.dns.services |
| Responsible (RNAME) | post@dns.services |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1814400s |
| Minimum (neg-cache TTL) | 7200s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-08-27 20:48:02 | 1448ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-27 00:54:55 | 1383ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 14:44:25 shown | 2379ms | 3 NS 1 A 1 MX | 🔓 Insecure |