heartbeats.dk is a .dk domain served by 2 nameservers (a.portsdns.se, b.portsdns.net). It was registered on 20 December 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.86.18.195 is hosted by Combell NV (AS34762) in Belgium. Mail is handled by heartbeats-dk.mail.protection.outlook.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 |
|---|---|---|---|---|---|---|---|
| 185.86.18.195 | 300s | 185.86.18.195.hosted.by.stone-is.net | AS34762 | Combell NV | 185.86.16.0/22 | 🇧🇪 Belgium | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.8 |
| 🔶 Autoconfig | heartbeats.dk → 185.86.18.195 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a00:1c98:1000:1234:0:3:603c:43a5 | 3600s | — | AS34762 | Combell NV | 2a00:1c98:0:0:0:0:0:0/32 | 🇧🇪 Belgium | — |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| adobe-idp-site-verification=1c2acb83811e6d9278bc655c7846093e807c83718aed78585392ceb49f2b67dd |
| anthropic-domain-verification-03dqdm=ix35lLyjvOfuaepZdCPoJ3eIL |
| dropbox-domain-verification=94s3nuuj5p27 |
| google-gws-recovery-domain-verification=71670648 |
| google-site-verification=1aneNxild1FDg6bFuSNp9l9G9ZcBsHYor8CVKwwXt38 |
| google-site-verification=S3DeUjnlQzPKbGIcXHlZGe9tI5ipYR2TDSdWdiCM45E |
| miro-verification=9d7b21d50d0bbe82550f9aa8f32a842e71c5d693 |
| monday-com-verification=iRGvFuf5bUQvUuy9ST7Ir-fwytzJ6gwLxtcnaaD0G1U |
| MS=ms33866525 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (heartbeats.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.heartbeats.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:65250275ea9c3@dmarc.centerasecurity.com; |
| www | 185.86.18.195 2a00:1c98:1000:1234:0:3:603c:43a5 (AS34762) (address records, no CNAME) |
| www vs bare domain | Same network heartbeats.dk: 185.86.18.195 2a00:1c98:1000:1234:0:3:603c:43a5 (AS34762) www.heartbeats.dk: 185.86.18.195 2a00:1c98:1000:1234:0:3:603c:43a5 (AS34762) |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-heartbeats-dk._domainkey.allerholding.onmicrosoft.com | 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: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.heartbeats.dk | heartbeats.dk |
| TXT | heartbeats.dk | anthropic-domain-verification-03dqdm=ix35lLyjvOfuaepZdCPoJ3eIL |
| TXT | heartbeats.dk | dropbox-domain-verification=94s3nuuj5p27 |
| TXT | heartbeats.dk | google-gws-recovery-domain-verification=71670648 |
| TXT | heartbeats.dk | miro-verification=9d7b21d50d0bbe82550f9aa8f32a842e71c5d693 |
| 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 | 2026072900 |
| Primary NS (MNAME) | a.portsdns.se |
| Responsible (RNAME) | registry@ports.net |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 28800s |
| Field | Value |
|---|---|
| Registrar | Abion AB |
| Registered | 2013-12-20 |
| Expires | 2026-12-31 (74d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Domain | Registrar |
|---|---|
| heartbeatsstudio.dk | Abion AB |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 07:37:10 | 2260ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-29 16:05:13 | 1383ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-27 07:53:44 | 9923ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 20:13:39 | 1014ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-21 05:53:59 | 10428ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-01 06:21:26 shown | 1597ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-02 11:33:18 | 1112ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 11:06:46 | 1795ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 11:04:25 | 1555ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 10:54:56 | 3679ms | 2 NS 1 A 1 MX | 🔓 Insecure |