ckff.dk is a .dk domain served by 2 nameservers (dns1.cscdns.net, dns2.cscdns.net). It was registered on 14 August 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 128.0.75.219 is hosted by Region Hovedstaden (AS198631) in Denmark. Mail is handled by smtp1.speednames.com, smtp2.speednames.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 128.0.75.219 | 86400s | — | AS198631 | Region Hovedstaden | 128.0.72.0/22 | 🇩🇰 Denmark | Frederiksberg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 14400s | smtp1.speednames.com | 185.26.230.84 | mxa.speednames.com | — |
| 20 | 14400s | smtp2.speednames.com | 185.26.230.90 | mxb.speednames.com | — |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (ckff.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.ckff.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; |
| www | 128.0.75.219 (AS198631) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 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 | 2018080815 |
| Primary NS (MNAME) | dns1.cscdns.net |
| Responsible (RNAME) | hostmaster@cscdns.net |
| Refresh | 10800s |
| Retry | 1800s |
| Expire | 3600000s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | CSC Digital Brand Service, Inc |
| Registered | 2018-08-14 |
| Expires | 2027-08-31 (318d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-02 00:38:55 shown | 733ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-31 13:32:04 | 2716ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-27 23:52:07 | 741ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-20 05:05:55 | 799ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 22:51:28 | 65535ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 21:11:06 | 493ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 21:11:02 | 1921ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 21:01:10 | 579ms | 2 NS 1 A 2 MX | 🔒 Secure |