authero.dk is a .dk domain served by 4 nameservers (ns1-02.azure-dns.com, ns2-02.azure-dns.net, ns3-02.azure-dns.org and 1 more). It was registered on 13 February 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by authero-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 → 40.104.116.40 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (authero.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.authero.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; pct=100 |
| www CNAME | authero.azureedge.net (all on azureedge.net) ⚠ 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.authero.dk |
| www vs bare domain | Neither resolves authero.dk: no address www.authero.dk: no address |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-authero-dk._domainkey.autherodk.onmicrosoft.com | RSA · ~1024 bit below 2048 bit |
| selector2 | selector2-authero-dk._domainkey.autherodk.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) | ns1-02.azure-dns.com |
| Responsible (RNAME) | azuredns-hostmaster@microsoft.com |
| Refresh | 3600s |
| Retry | 300s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2020-02-13 |
| Expires | 2027-02-28 (130d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 03:56:03 | 1396ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-10-04 01:16:10 | 1084ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-23 12:18:09 | 859ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-19 00:48:05 | 956ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-09 08:05:28 | 710ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-28 04:15:09 | 1306ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-30 22:31:32 shown | 950ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-28 04:20:50 | 1369ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-22 22:09:20 | 1072ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-16 13:51:09 | 678ms | 4 NS 0 A 1 MX | 🔓 Insecure |