thomasaarup.dk is a .dk domain served by 2 nameservers (ns1.vercel-dns.com, ns2.vercel-dns.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 216.198.79.65 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by mx.simply.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 216.198.79.65 | 1800s | — | AS16509 | Amazon.com, Inc. | 216.198.79.0/24 | 🇺🇸 United States | — |
| 64.29.17.65 | 1800s | — | AS16509 | Amazon.com, Inc. | 64.29.17.0/24 | 🇺🇸 United States | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 60s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 64.29.17.1 |
| 🔶 Autoconfig | 216.198.79.1 |
| Policy | Record (_dmarc.thomasaarup.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog |
| 0 | issue | sectigo.com |
| www | 216.198.79.1 64.29.17.1 (AS16509) (address records, no CNAME) |
| www vs bare domain | Same network thomasaarup.dk: 64.29.17.1 64.29.17.65 (AS16509) www.thomasaarup.dk: 216.198.79.1 64.29.17.1 (AS16509) |
| Wildcard | Yes: any name under the zone resolves |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| 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 | 1772443266 |
| Primary NS (MNAME) | ns1.vercel-dns.com |
| Responsible (RNAME) | hostmaster@nsone.net |
| Refresh | 43200s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-26 11:35:27 shown | 916ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 16:27:00 | 1008ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-22 10:19:59 | 1110ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 13:05:22 | 702ms | 2 NS 2 A 1 MX | 🔓 Insecure |