antidoping.dk is a .dk domain served by 2 nameservers (fattouche.ns.cloudflare.com, piper.ns.cloudflare.com). It was registered on 7 August 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.39.75 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by antidoping-dk.w-v1.mx.microsoft. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.39.75 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.143.169 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.152 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:274b | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3031::ac43:8fa9 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.39.75,172.67.143.169 ech=AEX+DQBBwgAgACBtyu18aHl3Q3UPt/mHow6uaC3JPMgpKvr7+nGAeWlsAwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:274b,2606:4700:3031::ac43:8fa9 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| apple-domain-verification=ztRaNvpQ5AcGpg0F |
| MS=ms35286563 |
| v=spf1 ip4:13.94.233.246 ip4:91.216.118.225 ip4:193.138.115.230 ip4:149.72.133.82 ip4:77.247.70.242 include:spf.protection.outlook.com include:servers.mcsv.net -all |
| Policy | Record (antidoping.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:13.94.233.246 ip4:91.216.118.225 ip4:193.138.115.230 ip4:149.72.133.82 ip4:77.247.70.242 include:spf.protection.outlook.com include:servers.mcsv.net -all |
| Policy | Record (_dmarc.antidoping.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; rua=mailto:it@antidoping.dk; ruf=mailto:it@antidoping.dk; aspf=s |
| Check | Result |
|---|---|
| Status | 🔒 Enforce |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✓ Valid |
| Mode | enforce |
| Policy ID | 20211201000000Z |
| max_age | 604800s |
| Policy MX | antidoping-dk.w-v1.mx.microsoft |
| Status | Report address (rua) |
|---|---|
| ✓ Enabled | mailto:it@antidoping.dk |
| www | 104.21.39.75 172.67.143.169 2606:4700:3030::6815:274b 2606:4700:3031::ac43:8fa9 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network antidoping.dk: 104.21.39.75 172.67.143.169 2606:4700:3030::6815:274b 2606:4700:3031::ac43:8fa9 (AS13335) www.antidoping.dk: 104.21.39.75 172.67.143.169 2606:4700:3030::6815:274b 2606:4700:3031::ac43:8fa9 (AS13335) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| k1 | dkim.mcsv.net | RSA · ~1024 bit below 2048 bit |
| s1 | s1.domainkey.u32755802.wl053.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u32755802.wl053.sendgrid.net | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 2/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.antidoping-dk.w-v1.mx.microsoft | DANE-EE · SPKI · SHA-256 | 803F7447CC75B208DBCA042346F5D8DF… |
| SMTP _25._tcp.antidoping-dk.w-v1.mx.microsoft | DANE-TA · Full cert · SHA-256 | C1AD7778796D20BCA65C889A26550211… |
| SMTP _25._tcp.antidoping-dk.w-v1.mx.microsoft | DANE-EE · SPKI · SHA-256 | 54883CC5F1849331E6BF5002C3129D20… |
| SMTP _25._tcp.antidoping-dk.w-v1.mx.microsoft | DANE-TA · Full cert · SHA-256 | EA7A25255D111FC3CE4CB8FABE3ADF9C… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2416852904 |
| Primary NS (MNAME) | fattouche.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2000-08-07 |
| Expires | 2027-04-30 (195d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 21:17:45 shown | 947ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-02 19:18:41 | 591ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-27 14:52:58 | 923ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-20 10:50:01 | 1774ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-17 05:23:33 | 2214ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-10 04:16:01 | 987ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-03 23:24:30 | 712ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-27 00:49:15 | 1631ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-16 19:57:27 | 2846ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-10 17:47:31 | 1475ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-09 15:44:43 | 2011ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-31 14:17:39 | 1528ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-27 11:58:27 | 17983ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-23 08:01:31 | 1676ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-18 08:04:56 | 9419ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-07 04:27:37 | 12502ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-25 06:23:27 | 1268ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-22 22:22:30 | 1035ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 13:34:13 | 3037ms | 2 NS 2 A 1 MX | 🔓 Insecure |