mediacom.dk is a .dk domain served by 2 nameservers (diana.ns.cloudflare.com, plato.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.44.219 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx0a-0013cc01.pphosted.com, mx0b-0013cc01.pphosted.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.44.219 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.204.31 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx0a-0013cc01.pphosted.com | 208.84.65.119 | mx0a-0013cc01.pphosted.com | AS26211 Proofpoint, Inc. |
| 10 | 300s | mx0b-0013cc01.pphosted.com | 208.86.201.118 | mx0b-0013cc01.pphosted.com | AS22843 Proofpoint, Inc. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.40 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::ac43:cc1f | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:2cdb | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.44.219,172.67.204.31 ech=AEX+DQBBpQAgACDPu+S7Rvu9XfcvCk4utnklkj2BdnrWRsKuH+G1WdNZFgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:cc1f,2606:4700:3037::6815:2cdb |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| _xmpp-server._tcp | 10 | 0 | 5269 | s2s.mediacom.dk.webexconnect.com |
| TXT Record |
|---|
| AcxvUgZPBB/BX/PYLfFPltokZV7xejx5Rkh2MbvEoKjXHEc3H9+FhPqidES07Vqw6vSHU4+18PBLDwc0nvwLBA== |
| atlassian-domain-verification=srl2cvrxmrDiLdUrDjPwDedty1LyjLhY0YJaaWXrSRlKWoQKrxGeanEmbfrdFG2I |
| google-site-verification=NVXp61liZe9lrxhmA9QYe7i87QyHtrqVyMmdqhX9HKY |
| groupm-p15-l5-170209-1220-55.azurewebsites.net |
| MS=ms21604218 |
| v=spf1 include:bounce.peytz.dk +mx ~all |
| work-accounts-domain-verification=UVpxi1bwIbZaBCxbSi5ByK1Qs8khUr |
| wrike-verification=MzEyODg4Mzo5OWRmMmZkY2IwOTdjZDdjNGIxYTAyMzZmYzRiMGNiNDlhZmRlMTQ4ZmQ2MTU4YzU2YTM1ODI4ZjM2ZDBhMTYx |
| ZOOM_verify_yESIlOikR2WzDhrxMrpZ5g |
| Policy | Record (mediacom.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:bounce.peytz.dk +mx ~all |
| Policy | Record (_dmarc.mediacom.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=100; fo=1; adkim=r; aspf=r; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com |
| www | 104.21.44.219 172.67.204.31 2606:4700:3033::ac43:cc1f 2606:4700:3037::6815:2cdb (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network mediacom.dk: 104.21.44.219 172.67.204.31 2606:4700:3033::ac43:cc1f 2606:4700:3037::6815:2cdb (AS13335) www.mediacom.dk: 104.21.44.219 172.67.204.31 2606:4700:3033::ac43:cc1f 2606:4700:3037::6815:2cdb (AS13335) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | Revoked (empty key) |
| dkim | — | Revoked (empty key) |
| k1 | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| s1 | — | Revoked (empty key) |
| s2 | — | Revoked (empty key) |
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| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.mediacom.dk | 3Ajpei9ExiFjqOCM28Fe45c5wemw3_9FAH6KOZxM5fE |
| TXT | _acme-challenge.mediacom.dk | qKwiMAPFyqXO1U3xfZdW4OpB53MZMUxtGV2COfrM9Mc |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2414971449 |
| Primary NS (MNAME) | diana.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 06:01:19 | 1762ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-07 17:23:32 | 708ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-03 18:43:59 | 1093ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-19 06:26:35 | 2006ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-16 18:09:02 shown | 1708ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-01 09:22:05 | 1344ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-16 23:52:36 | 1548ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-15 17:39:26 | 9222ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-19 09:41:15 | 1869ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-21 06:53:27 | 1882ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-17 21:28:46 | 1020ms | 2 NS 2 A 2 MX | 🔓 Insecure |