tennis-klub.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It 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 mx1.mailpod16-cph3.g1i.one.com, mx2.mailpod16-cph3.g1i.one.com and 2 more. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 13.107.246.44 | 43200s | — | AS8075 | Microsoft Corporation | 13.107.240.0/21 | 🇺🇸 United States | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx1.mailpod16-cph3.g1i.one.com | 5.249.232.33 | mx1.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.mailpod16-cph3.g1i.one.com | 5.249.232.34 | mx2.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.mailpod16-cph3.g1i.one.com | 5.249.232.35 | mx3.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.mailpod16-cph3.g1i.one.com | 5.249.232.36 | mx4.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| TXT Record |
|---|
| v=spf1 include:_custspf.one.com ~all |
| Policy | Record (tennis-klub.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_custspf.one.com ~all |
| Policy | Record (_dmarc.tennis-klub.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject |
| www CNAME | gomember-d3hqa4fzfdeea8ed.z03.azurefd.net (all on azurefd.net) |
| www vs bare domain | Same network tennis-klub.dk: 13.107.246.44 (AS8075) www.tennis-klub.dk: 150.171.109.194 2603:1061:14:c1::1 (AS8075) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 1/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| SMTP _25._tcp.mx2.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| SMTP _25._tcp.mx3.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| SMTP _25._tcp.mx4.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101201 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 07:01:07 shown | 749ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-26 18:40:31 | 595ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-12 15:55:41 | 744ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-27 10:42:30 | 791ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-12 20:37:39 | 3957ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-18 03:13:47 | 2765ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-12 20:50:31 | 2823ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-08 14:03:07 | 1386ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-01 23:22:08 | 751ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-23 08:27:43 | 4645ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-22 05:28:55 | 1058ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 13:27:03 | 2383ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-21 11:56:53 | 1192ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 15:18:00 | 768ms | 2 NS 1 A 4 MX | 🔒 Secure |