heyio.dk is a .dk domain served by 2 nameservers (gabe.ns.cloudflare.com, virginia.ns.cloudflare.com). It was registered on 23 June 2026 (WHOIS) and first appeared in the .dk zone on 24 June 2026. Its website address 104.21.35.106 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by inbound.poststack.dev. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.35.106 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.217.187 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | inbound.poststack.dev | 89.167.61.217 | poststack.dev | AS24940 Hetzner Online GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.217.187 |
| 🔶 Autoconfig | 172.67.217.187 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::6815:236a | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:d9bb | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.35.106,172.67.217.187 ech=AEX+DQBBSwAgACB8hS7XGTvwvsw2I2tpNnL/N/Dx/JBih2q1hmm6BxbXYgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:236a,2606:4700:3037::ac43:d9bb |
| TXT Record |
|---|
| google-site-verification=mU-DntwDxJW0HUDomyrXdBdRScPB-nb8kudfWjL8Nyc |
| v=spf1 include:poststack.dev -all |
| Policy | Record (heyio.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:poststack.dev -all |
| Policy | Record (_dmarc.heyio.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; rua=mailto:dmarc@poststack.dev; fo=1 |
| www | 104.21.35.106 172.67.217.187 2606:4700:3033::6815:236a 2606:4700:3037::ac43:d9bb (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 1/10 · policy: -all
No problems found| 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 | 2412890360 |
| Primary NS (MNAME) | gabe.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2026-06-23 |
| Expires | 2027-06-22 (245d) |
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 |
|---|---|
| danskadresseapi.dk | ONE.COM A/S |
| danskcvrapi.dk | ONE.COM A/S |
| robby.dk | ONE.COM A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-19 10:42:35 | 658ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-02 19:57:02 | 662ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-28 06:14:22 | 1815ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 06:07:29 shown | 1242ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-23 02:35:13 | 1976ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-22 02:31:49 | 1171ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-27 12:01:31 | 2211ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-06 13:14:42 | 3083ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-26 17:39:20 | 1992ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 13:05:22 | 3557ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-24 08:37:17 | 2856ms | 2 NS 2 A 1 MX | 🔓 Insecure |