dbsu.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.46 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by dbsu-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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.21.40.46 | 3600s | vm1440.enterprisecloud.nu | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.152 |
| 🔶 Autoconfig | 185.21.40.46 |
| TXT Record |
|---|
| v=spf1 include:spf.simply.com include:sendgrid.net include:spf.protection.outlook.com include:web.shared.mysmtp.com -all |
| Policy | Record (dbsu.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.simply.com include:sendgrid.net include:spf.protection.outlook.com include:web.shared.mysmtp.com -all |
| Policy | Record (_dmarc.dbsu.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | 185.21.40.46 (AS48854) (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 | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-dbsu-dk._domainkey.ungblind.onmicrosoft.com | 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: 8/10 · policy: -all
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026093000 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 16:42:59 | 1377ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 03:21:12 shown | 1160ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 02:22:07 | 1662ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 00:48:16 | 958ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 03:28:10 | 911ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-07 00:36:47 | 33017ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-02 00:44:31 | 2953ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 01:15:50 | 1548ms | 3 NS 1 A 1 MX | 🔒 Secure |