simplersystems.dk is a .dk domain served by 2 nameservers (betty.ns.cloudflare.com, jimmy.ns.cloudflare.com). It was registered on 7 June 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.3.158 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by simplersystems-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.3.158 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.130.235 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:39e | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3031::ac43:82eb | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.3.158,172.67.130.235 ech=AEX+DQBBHgAgACBEFZRb1Q/KFaPjNIBqt4GH74yAXCyQ65yenvEIHvK8BQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:39e,2606:4700:3031::ac43:82eb |
| TXT Record |
|---|
| MS=ms64599623 |
| v=spf1 include:spf.mailjet.com include:spf.protection.outlook.com ~all |
| Policy | Record (simplersystems.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.mailjet.com include:spf.protection.outlook.com ~all |
| www | 104.21.3.158 172.67.130.235 2606:4700:3030::6815:39e 2606:4700:3031::ac43:82eb (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network simplersystems.dk: 104.21.3.158 172.67.130.235 2606:4700:3030::6815:39e 2606:4700:3031::ac43:82eb (AS13335) www.simplersystems.dk: 104.21.3.158 172.67.130.235 2606:4700:3030::6815:39e 2606:4700:3031::ac43:82eb (AS13335) |
| Wildcard | No |
DNS lookups: 2/10 · 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 | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2416074582 |
| Primary NS (MNAME) | betty.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2010-06-07 |
| Expires | 2027-06-30 (255d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 10:41:06 | 1150ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-29 04:18:16 shown | 894ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 03:39:25 | 1201ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-10 20:56:51 | 2429ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-03 19:20:25 | 1975ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-04 22:31:05 | 2311ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-27 03:30:25 | 1128ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-21 23:43:53 | 1343ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-18 06:11:32 | 1069ms | 2 NS 2 A 1 MX | 🔓 Insecure |