cphdans.dk is a .dk domain served by 3 nameservers (linux3.dform.dk, ns1.dform.dk, ns2.dform.dk). It was registered on 11 February 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.98.139.7 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| linux3.dform.dk | — | — | — |
| ns1.dform.dk | — | — | — |
| ns2.dform.dk | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 91.98.139.7 | — | linux3.dform.dk | AS24940 | Hetzner Online GmbH | 91.98.0.0/15 | 🇩🇪 Germany | Nuremberg |
| TXT Record |
|---|
| v=spf1 ip4:91.98.139.7 ip4:176.9.110.172 ip6:2a01:4f8:1c1a:22c5::1 include:aspmx.googlemail.com include:servers.mcsv.net ~all |
| Policy | Record (cphdans.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:91.98.139.7 ip4:176.9.110.172 ip6:2a01:4f8:1c1a:22c5::1 include:aspmx.googlemail.com include:servers.mcsv.net ~all |
| Policy | Record (_dmarc.cphdans.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; pct=100; ruf=mailto:postmaster@cphdans.dk; rua=mailto:postmaster@cphdans.dk |
| Flags | Tag | Value |
|---|---|---|
| 0 | issuewild | letsencrypt.org |
| www | 91.98.139.7 (AS24940) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| k1 | dkim.mcsv.net | RSA · ~1024 bit below 2048 bit |
| s1 | s1.domainkey.u1018819.wl070.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u1018819.wl070.sendgrid.net | RSA · ~1024 bit below 2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 3/10 · policy: ~all
No problems found| 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 | 2026052502 |
| Primary NS (MNAME) | linux3.dform.dk |
| Responsible (RNAME) | root@linux3.dform.dk |
| Refresh | 3600s |
| Retry | 600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2012-02-11 |
| Expires | 2027-02-28 (134d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-25 12:17:10 | 9680ms | 3 NS 1 A 7 MX | 🔓 Insecure |
| 2026-08-26 20:35:00 | 1559ms | 3 NS 1 A 7 MX | 🔓 Insecure |
| 2026-07-22 17:52:38 | 1960ms | 3 NS 1 A 7 MX | 🔓 Insecure |
| 2026-07-02 01:45:18 | 2372ms | 3 NS 1 A 7 MX | 🔓 Insecure |
| 2026-06-16 22:40:43 shown | 835ms | 3 NS 1 A 7 MX | 🔓 Insecure |
| 2026-06-16 22:40:25 | 782ms | 3 NS 1 A 7 MX | 🔓 Insecure |