csbilsyn.dk is a .dk domain served by 2 nameservers (perla.ns.cloudflare.com, uriah.ns.cloudflare.com). It was registered on 3 December 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.57.124 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.pub.mailpod8-cph3.one.com, mx2.pub.mailpod8-cph3.one.com and 1 more. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 104.21.57.124 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.163.223 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx1.pub.mailpod8-cph3.one.com | 185.164.14.102 | mx1.pub.mailpod8-cph3.one.com | AS51468 One.com A/S |
| 10 | 300s | mx2.pub.mailpod8-cph3.one.com | 185.164.14.103 | mx2.pub.mailpod8-cph3.one.com | AS51468 One.com A/S |
| 10 | 300s | mx3.pub.mailpod8-cph3.one.com | 185.164.14.104 | mx3.pub.mailpod8-cph3.one.com | AS51468 One.com A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:397c | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3031::ac43:a3df | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.57.124,172.67.163.223 ech=AEX+DQBBBQAgACARlf/16mqF0fEj+29zvnsA9lmak431rBaHqOmKvWW0aAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:397c,2606:4700:3031::ac43:a3df |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve csbilsyn.dk: 104.21.57.124 172.67.163.223 2606:4700:3031::6815:397c 2606:4700:3031::ac43:a3df (AS13335) (all like this)www.csbilsyn.dk: no address |
| Wildcard | No |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod8-cph3.one.com | DANE-EE · SPKI · SHA-256 | E7531AB55E1935413AA5EC5366CF909D… |
| SMTP _25._tcp.mx2.pub.mailpod8-cph3.one.com | DANE-EE · SPKI · SHA-256 | E7531AB55E1935413AA5EC5366CF909D… |
| SMTP _25._tcp.mx3.pub.mailpod8-cph3.one.com | DANE-EE · SPKI · SHA-256 | E7531AB55E1935413AA5EC5366CF909D… |
| 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 | 2417145314 |
| Primary NS (MNAME) | perla.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 | 2017-12-03 |
| Expires | 2026-12-31 (75d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-11 00:12:47 shown | 543ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-01 17:30:30 | 561ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-14 07:54:06 | 6195ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-06 17:13:25 | 9149ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-02 02:34:46 | 1650ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-02 01:44:29 | 985ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-16 23:06:17 | 631ms | 2 NS 2 A 3 MX | 🔓 Insecure |