riissoerensen.dk is a .dk domain served by 4 nameservers (ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com and 1 more). It was registered on 16 October 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by riissoerensen-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 → 40.104.116.8 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| mscid=s1O+qg/JyXN8muSgzJAlSg/PEHgM2nKrhXOMZA1D/x+OPWLcFrs2H9yKd2h14W7XxIReT9hSGbhXdmC1m8p36Q== |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (riissoerensen.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.riissoerensen.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves riissoerensen.dk: no address www.riissoerensen.dk: no address |
| Wildcard | No |
| 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-riissoerensen-dk._domainkey.riisdata.onmicrosoft.com | RSA · ~1024 bit below 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 | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 1 |
| Primary NS (MNAME) | ns1.bdm.microsoftonline.com |
| Responsible (RNAME) | azuredns-hostmaster@microsoft.com |
| Refresh | 3600s |
| Retry | 300s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2010-10-16 |
| Expires | 2026-10-31 (5d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 16:34:23 | 1214ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-10-04 03:16:49 | 1852ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-10-01 03:04:39 | 696ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-13 09:06:24 | 1371ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-10 08:58:21 | 1098ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-08 15:48:00 | 17314ms | 4 NS 0 A 1 MX | ❓ Unknown |
| 2026-07-02 22:55:36 shown | 9909ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-25 18:07:41 | 1490ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-21 21:08:55 | 1114ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 12:19:56 | 864ms | 4 NS 0 A 1 MX | 🔓 Insecure |