aarstennisklub.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 2 January 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 13.107.246.44 is hosted by Microsoft Corporation (AS8075) in United States. Mail is handled by mx.simply.com. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 13.107.246.44 | 3600s | — | AS8075 | Microsoft Corporation | 13.107.240.0/21 | 🇺🇸 United States | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 13.107.246.44 |
| 🔶 Autoconfig | 13.107.246.44 |
| www CNAME | gomemberpod4-aqgrggd6hebzg5gf.z03.azurefd.net (all on azurefd.net) |
| www vs bare domain | Same network aarstennisklub.dk: 13.107.246.44 (AS8075) www.aarstennisklub.dk: 150.171.109.193 2603:1061:14:c1::1 (AS8075) |
| 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 |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 4B949F05A63FED95FC94B3A83DD70167… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026093000 |
| 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 | 2001-01-02 |
| Expires | 2027-03-31 (163d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Domain | Registrar |
|---|---|
| aarspadel.dk | Simply.com A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 10:13:23 shown | 612ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-04 06:03:29 | 466ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 16:49:19 | 669ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 14:56:54 | 491ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-16 02:44:50 | 812ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-27 13:04:15 | 2984ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 04:02:51 | 1009ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 12:58:26 | 1461ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 12:54:19 | 1230ms | 3 NS 1 A 1 MX | 🔒 Secure |