karbowiak.dk is a .dk domain served by 2 nameservers (dana.ns.cloudflare.com, matt.ns.cloudflare.com). It was registered on 27 July 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.55.105 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.karbowiak.dk. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.55.105 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.147.121 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail.karbowiak.dk | 84.238.45.241 | 84-238-45-241.ptr.bnaa.dk | AS33796 Bolignet-aarhus F.m.b.a. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | mail.karbowiak.dk → 84.238.45.241 |
| 🔶 Autoconfig | mail.karbowiak.dk → 84.238.45.241 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::ac43:9379 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3031::6815:3769 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.55.105,172.67.147.121 ech=AEX+DQBBewAgACCj5iljwt00d5XSt0vQmRGZ2UdV7gI9lw33ETERIDpmKgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:9379,2606:4700:3031::6815:3769 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _imap._tcp | 0 | 1 | 143 | mail.karbowiak.dk |
| _imaps._tcp | 0 | 1 | 993 | mail.karbowiak.dk |
| TXT Record |
|---|
| google-site-verification=qVF8yqN01WRxN-Jd9HPSM9dn28TaNj5BQ8kWkZCeZBY |
| v=spf1 mx ra=postmaster -all |
| Policy | Record (karbowiak.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx ra=postmaster -all |
| Policy | Record (_dmarc.karbowiak.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:postmaster@karbowiak.dk; ruf=mailto:postmaster@karbowiak.dk |
| Check | Result |
|---|---|
| Status | ⚠️ Invalid |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✗ Missing / invalid |
| Policy ID | 13332707880407307401 |
| Policy MX | — |
| Status | Report address (rua) |
|---|---|
| ✓ Enabled | mailto:postmaster@karbowiak.dk |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com; cansignhttpexchanges=yes |
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog; cansignhttpexchanges=yes |
| 0 | issue | ssl.com |
| 0 | issuewild | comodoca.com |
| 0 | issuewild | digicert.com; cansignhttpexchanges=yes |
| 0 | issuewild | letsencrypt.org |
| 0 | issuewild | pki.goog; cansignhttpexchanges=yes |
| 0 | issuewild | ssl.com |
| www | Exists, no address |
| www vs bare domain | www does not resolve karbowiak.dk: 104.21.55.105 172.67.147.121 2606:4700:3030::ac43:9379 2606:4700:3031::6815:3769 (AS13335) (all like this)www.karbowiak.dk: no address |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2408085258 |
| Primary NS (MNAME) | dana.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 | 2006-07-27 |
| Expires | 2029-07-31 (1017d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 07:32:17 | 1685ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-05 07:29:02 | 587ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-01 07:13:29 | 779ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-23 15:35:47 | 1639ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-03 00:50:58 | 1473ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-27 18:57:27 | 831ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-26 18:43:37 | 1123ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-04 00:37:24 | 1328ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-20 00:35:20 | 9048ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-14 04:38:28 | 8907ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-08 22:11:01 | 9531ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-04 15:13:25 | 4841ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-03 06:10:52 | 1103ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-28 06:10:49 shown | 1172ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-21 02:55:58 | 1213ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-20 17:03:04 | 3332ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-17 12:21:01 | 3687ms | 2 NS 2 A 1 MX | 🔒 Secure |