sidelinien.dk is a .dk domain served by 2 nameservers (dan.ns.cloudflare.com, molly.ns.cloudflare.com). It was registered on 18 August 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.79.161 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by .. The zone is DNSSEC-signed and validates, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 104.21.79.161 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.146.149 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.146.149 |
| 🔶 Autoconfig | 172.67.146.149 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::6815:4fa1 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::ac43:9295 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| TXT Record |
|---|
| FC Koebenhavn Fan Club |
| google-site-verification=BOsph3_FEko40wYjXZWcWGjsp5X2JhHdPkB7GswVSTk |
| v=spf1 -all |
| Policy | Record (sidelinien.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.sidelinien.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject |
| www | 104.21.79.161 172.67.146.149 2606:4700:3032::6815:4fa1 2606:4700:3036::ac43:9295 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network sidelinien.dk: 104.21.79.161 172.67.146.149 2606:4700:3032::6815:4fa1 2606:4700:3036::ac43:9295 (AS13335) www.sidelinien.dk: 104.21.79.161 172.67.146.149 2606:4700:3032::6815:4fa1 2606:4700:3036::ac43:9295 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 0/10 · 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 | 2417440046 |
| Primary NS (MNAME) | dan.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 | 1998-08-18 |
| Expires | 2027-09-30 (346d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Domain | Registrar |
|---|---|
| 100pctkbh.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 12:59:03 shown | 3294ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-23 16:09:56 | 606ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-27 08:26:00 | 517ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-26 08:21:56 | 546ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-09 01:47:50 | 1025ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-10 15:23:36 | 879ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-08 23:54:47 | 1666ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-20 03:20:27 | 723ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-18 07:34:33 | 1817ms | 2 NS 2 A 0 MX | 🔒 Secure |