aposter.dk is a .dk domain served by 2 nameservers (dell.ns.cloudflare.com, karl.ns.cloudflare.com). It was registered on 5 July 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.62.165 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.aposter.dk. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.62.165 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.137.137 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 60s | mail.aposter.dk | 192.250.229.80 | s3145.fra1.stableserver.net | AS209341 WHG Hosting Services Ltd |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.137.137 |
| 🔶 Autoconfig | 104.21.62.165 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::6815:3ea5 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3032::ac43:8989 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.62.165,172.67.137.137 ech=AEX+DQBBiwAgACCLF6PJdl8GShbwHdy9bDUhXsYaw0Dzjw4BVz/THOM2FQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:3ea5,2606:4700:3032::ac43:8989 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | cpanelemaildiscovery.cpanel.net |
| TXT Record |
|---|
| v=spf1 mx include:relay.mailchannels.net include:spf.antispamcloud.com -all |
| Policy | Record (aposter.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx include:relay.mailchannels.net include:spf.antispamcloud.com -all |
| Policy | Record (_dmarc.aposter.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject |
| www | 104.21.62.165 172.67.137.137 2606:4700:3032::6815:3ea5 2606:4700:3032::ac43:8989 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | 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: 3/10 · 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 | 2413054286 |
| Primary NS (MNAME) | dell.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2021-07-05 |
| Expires | 2027-07-31 (286d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 21:03:17 | 730ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-03 12:41:31 | 493ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 18:36:10 shown | 575ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-23 20:08:53 | 2462ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 03:29:46 | 759ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-25 11:21:49 | 553ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-11 03:14:58 | 9251ms | 2 NS 2 A 1 MX | ❓ Unknown |
| 2026-06-27 15:18:14 | 749ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 19:14:41 | 1043ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 13:36:39 | 566ms | 2 NS 2 A 1 MX | 🔓 Insecure |