marathon.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 31 January 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.31.79.5 is hosted by DLX A/S (AS47527) in Denmark. Mail is handled by marathon-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 185.31.79.5 | 600s | v4-elastic-ingress.balancer01.hyperscalemega.cloud | AS47527 | DLX A/S | 185.31.76.0/22 | 🇩🇰 Denmark | Herning |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.152 |
| 🔶 Autoconfig | 94.231.109.178 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:fe80:1010::35:4 | 3600s | cloudproxy10035.sucuri.net | AS30148 | Sucuri | 2a02:fe80:1010:0:0:0:0:0/48 | 🇺🇸 United States | — |
| TXT Record |
|---|
| google-site-verification=BBoibMY2OR0z9_LQvV2hRw8fR9g44lGdwBfG8eRpnJY |
| kecbgnjnnk3baru5pov9ka4isl |
| MS=ms29172665 |
| v=spf1 a mx include:spf.curanet.dk include:spf.protection.outlook.com include:servers.mcsv.net ip4:94.231.106.116 include:_spf.powerhosting.dk include:spf.mandrillapp.com include:outlook.com include:emsd1.com ~all |
| Policy | Record (marathon.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx include:spf.curanet.dk include:spf.protection.outlook.com include:servers.mcsv.net ip4:94.231.106.116 include:_spf.powerhosting.dk include:spf.mandrillapp.com include:outlook.com include:emsd1.com ~all |
| Policy | Record (_dmarc.marathon.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:marketing@ruby-rejser.dk; ruf=mailto:marketing@ruby-rejser.dk |
| www | 185.31.79.5 2a02:fe80:1010::35:4 (AS30148 AS47527) (address records, no CNAME) |
| www vs bare domain | Same network marathon.dk: 185.31.79.5 2a02:fe80:1010::35:4 (AS30148 AS47527) www.marathon.dk: 185.31.79.5 2a02:fe80:1010::35:4 (AS30148 AS47527) |
| 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 |
DNS lookups: 12/10 · policy: ~all
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101300 |
| 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 | 1997-01-31 |
| Expires | 2027-03-31 (164d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 06:04:13 shown | 3053ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-13 04:57:22 | 5486ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 16:12:04 | 1247ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 16:11:30 | 2813ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 15:59:42 | 1058ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 00:13:16 | 966ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 22:03:38 | 10003ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 12:01:59 | 5983ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 13:29:09 | 2496ms | 4 NS 1 A 1 MX | 🔒 Secure |