guardrails.dk is a .dk domain served by 4 nameservers (ns1-07.azure-dns.com, ns2-07.azure-dns.net, ns3-07.azure-dns.org and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 9.163.40.246 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by guardrails-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 9.163.40.246 | 300s | — | AS8075 | Microsoft Corporation | 9.163.0.0/16 | 🇳🇱 The Netherlands | Amsterdam |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.40 |
| TXT Record |
|---|
| _glw3ftksekk9v4e6lz932f6x630u3cf |
| _j23mj9ohf6btts70o39mvenpaz1h7ic |
| _pawf7xqpltafa5i2sble4s0hhrl2pmn |
| _sh7kb10s5spur3o7b33gid81o6k9q9l |
| _vjt8ozxdb6wigbgz3b365jmnb0tw4e8 |
| _ze5vjcukeut9b1ehj60iodley3ty68t |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (guardrails.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| www CNAME | jolly-field-0ba621e03.7.azurestaticapps.net (all on azurestaticapps.net) → 132.220.38.112 (AS8075) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
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 | 1 |
| Primary NS (MNAME) | ns1-07.azure-dns.com |
| Responsible (RNAME) | azuredns-hostmaster@microsoft.com |
| Refresh | 3600s |
| Retry | 300s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 19:46:03 | 1182ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 08:01:22 | 673ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-30 07:26:22 | 1030ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 19:53:13 shown | 1282ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 08:15:00 | 922ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 10:44:03 | 1106ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 10:39:05 | 879ms | 4 NS 1 A 1 MX | 🔒 Secure |