aerlig.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 30 September 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.212 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by aerlig-dk.mail.protection.outlook.com. The zone is DNSSEC-signed but currently fails validation, 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 |
|---|---|---|---|---|---|---|---|
| 93.191.156.212 | 3600s | linux311.unoeuro.com | AS48854 | team.blue Denmark A/S | 93.191.152.0/21 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| 🔶 Autoconfig | 93.191.156.212 |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com include:_spf.spysystem.dk -all |
| Policy | Record (aerlig.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:_spf.spysystem.dk -all |
| Policy | Record (_dmarc.aerlig.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | 93.191.156.212 (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-aerlig-dk._domainkey.aerlig.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: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: insecurity proof failed |
| Field | Value |
|---|---|
| Serial | 2026021700 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2018-09-30 |
| Expires | 2027-09-30 (348d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 20:38:23 | 1592ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 09:12:52 | 1041ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 07:39:47 | 709ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 22:15:52 | 772ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 18:24:44 | 989ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-23 06:16:51 shown | 1090ms | 4 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-21 12:31:25 | 922ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 12:44:09 | 2606ms | 4 NS 1 A 1 MX | 🔒 Secure |