kaso.dk is a .dk domain served by 2 nameservers (diana.ns.cloudflare.com, toby.ns.cloudflare.com). It was registered on 17 March 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.21.51 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.bytestash.net. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.21.51 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.196.108 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail.bytestash.net | 152.53.133.163 2a0a:4cc0:c0:1074:184b:9fff:fe51:5d13 |
mail.bytestash.net mail.bytestash.net |
AS197540 netcup GmbH AS197540 netcup GmbH |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::6815:1533 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:c46c | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.21.51,172.67.196.108 ech=AEX+DQBBXQAgACDPXcaw91IltW5v/mfQPPqNzYoyl38YV4ifOY7tlervNwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:1533,2606:4700:3037::ac43:c46c |
| TXT Record |
|---|
| v=spf1 ip4:152.53.133.163 ip6:2a0a:4cc0:c0:1074:184b:9fff:fe51:5d13 -all |
| Policy | Record (kaso.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:152.53.133.163 ip6:2a0a:4cc0:c0:1074:184b:9fff:fe51:5d13 -all |
| Policy | Record (_dmarc.kaso.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=100; adkim=s; aspf=s; rua=mailto:e81e15c4728547a39e3a0b0fa7132950@dmarc-reports.cloudflare.net |
| www | 185.151.30.197 2a07:7800::197 (AS48254) (address records, no CNAME) |
| www vs bare domain | Same network kaso.dk: 185.151.30.197 2a07:7800::197 (AS48254) www.kaso.dk: 185.151.30.197 2a07:7800::197 (AS48254) |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| s1 | — | 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: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2406946304 |
| Primary NS (MNAME) | diana.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 | 2016-03-17 |
| Expires | 2027-03-31 (165d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-05 02:14:28 | 3229ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-03 02:03:51 | 960ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-29 07:39:14 | 3459ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 00:03:47 | 2699ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-21 01:15:37 | 7943ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-20 00:51:32 | 9883ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-15 05:24:31 | 1238ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-09 06:37:27 | 1738ms | 2 NS 2 A 1 MX | ❓ Unknown |
| 2026-06-30 18:47:24 shown | 1519ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 13:21:01 | 4134ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 23:28:45 | 875ms | 2 NS 2 A 1 MX | 🔓 Insecure |