teck.dk is a .dk domain served by 2 nameservers (craig.ns.cloudflare.com, maria.ns.cloudflare.com). It was registered on 8 July 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. 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.
| TXT Record |
|---|
| protonmail-verification=c9029bb835a5bb00695c601ab8317305954e1f67 |
| v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (teck.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (_dmarc.teck.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine |
| www | 104.21.41.62 172.67.189.122 2606:4700:3030::6815:293e 2606:4700:3031::ac43:bd7a (AS13335) (address records, no CNAME) |
| www vs bare domain | Only www resolves teck.dk: no address (all like this)www.teck.dk: 104.21.41.62 172.67.189.122 2606:4700:3030::6815:293e 2606:4700:3031::ac43:bd7a (AS13335) |
| Wildcard | No |
DNS lookups: 2/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2406751674 |
| Primary NS (MNAME) | craig.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 | 2024-07-08 |
| Expires | 2027-07-07 (256d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 23:36:01 | 2808ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-10-06 23:31:36 | 481ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-09-24 17:44:57 | 827ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-09-20 18:12:08 | 10084ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-09-14 05:23:40 | 1212ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-09-05 09:40:38 | 1525ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-08-08 23:15:48 | 1338ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-07-12 06:35:56 | 1618ms | 2 NS 0 A 2 MX | ❓ Unknown |
| 2026-06-26 21:11:07 | 827ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-06-19 14:11:04 | 3088ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-06-17 13:37:42 shown | 4391ms | 2 NS 0 A 2 MX | 🔓 Insecure |