cyclingchallenge.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 27 March 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| 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 (cyclingchallenge.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_custspf.one.com ~all |
| Policy | Record (_dmarc.cyclingchallenge.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:info@cyclingchallenge.dk; ruf=mailto:info@cyclingchallenge.dk; sp=quarantine; adkim=s; aspf=s |
| www CNAME | verify.squarespace.com (all on squarespace.com) |
| www vs bare domain | Only www resolves cyclingchallenge.dk: no address (all like this)www.cyclingchallenge.dk: 198.185.159.176 198.185.159.177 198.49.23.176 198.49.23.177 (AS53831) |
| 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 | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026083101 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2014-03-27 |
| Expires | 2027-03-31 (163d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 08:58:20 | 2415ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-10-02 04:16:52 | 724ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-09-26 03:06:22 | 557ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-09-11 10:59:37 shown | 550ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-09-07 11:12:10 | 771ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-08-25 17:03:38 | 566ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-08-19 09:11:53 | 5100ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-08-12 06:07:23 | 4841ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-08-10 12:00:24 | 3721ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-08-05 03:16:39 | 2771ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-07-01 10:36:12 | 627ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-06-26 22:03:57 | 563ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-06-21 05:41:54 | 595ms | 2 NS 0 A 4 MX | ⚠️ Bogus |
| 2026-06-16 23:26:06 | 658ms | 2 NS 0 A 4 MX | 🔒 Secure |