holbaek-kajakklub.dk is a .dk domain served by 2 nameservers (carioca.ns.cloudflare.com, roman.ns.cloudflare.com). It was registered on 3 March 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.20.6 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.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 |
|---|---|---|---|---|---|---|---|
| 104.21.20.6 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.190.190 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔶 Autoconfig | 172.67.190.190 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::ac43:bebe | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3033::6815:1406 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.20.6,172.67.190.190 ech=AEX+DQBBVAAgACAHSHUICxC8t/iQHx3wsFiEKQ08JFPD9rFsEmJ6bo5FEQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:bebe,2606:4700:3033::6815:1406 |
| TXT Record |
|---|
| _8hhmszntye7wl4f9nqxj7jj50k3z2n0 |
| v=spf1 include:spf.simply.com ?all |
| Policy | Record (holbaek-kajakklub.dk) |
|---|---|
| ?all (neutral) | v=spf1 include:spf.simply.com ?all |
| Policy | Record (_dmarc.holbaek-kajakklub.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com; |
| www CNAME | gomember2-fkg0ggbxftbtgge7.z03.azurefd.net (all on azurefd.net) |
| www vs bare domain | Different networks holbaek-kajakklub.dk: 104.21.20.6 172.67.190.190 2606:4700:3031::ac43:bebe 2606:4700:3033::6815:1406 (AS13335) (all like this)www.holbaek-kajakklub.dk: 150.171.109.193 2603:1061:14:c1::1 (AS8075) |
| Wildcard | No |
DNS lookups: 1/10 · policy: ?all
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| 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 | 2408999561 |
| Primary NS (MNAME) | carioca.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2005-03-03 |
| Expires | 2027-03-31 (160d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 11:08:40 | 808ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 20:33:35 | 525ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-09 08:44:14 | 891ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-26 14:41:27 shown | 836ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-08 14:47:47 | 983ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-22 18:50:43 | 1182ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 11:11:50 | 1025ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 04:09:45 | 1020ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 13:18:16 | 334ms | 0 NS 0 A 0 MX | ❓ Unknown |