landteknik.dk is a .dk domain served by 3 nameservers (ns1.e-studio.dk, ns2.e-studio.dk, ns3.e-studio.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx1.spamfri.dk, mx2.spamfri.dk and 1 more. The zone is DNSSEC-signed and validates, has no 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 195.242.131.32 | — | web4.e-studio.dk | AS62121 | — | — | — | — |
| TXT Record |
|---|
| v=spf1 +include:_spf.e-studio.dk -all |
| Policy | Record (landteknik.dk) |
|---|---|
| -all (hard fail) | v=spf1 +include:_spf.e-studio.dk -all |
| www CNAME | landteknik.dk (all on landteknik.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 7 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~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: 1/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.spamfri.dk | DANE-EE · SPKI · SHA-256 | 884451547A03D0AC2F628D943839BAA6… |
| SMTP _25._tcp.mx2.spamfri.dk | DANE-EE · SPKI · SHA-256 | 6598C93F79B95376BB8099E9AC862167… |
| SMTP _25._tcp.mx3.spamfri.dk | DANE-EE · SPKI · SHA-256 | BBFB0694919290E5BC9D6E2C6F47D846… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026060100 |
| Primary NS (MNAME) | ns1.e-studio.dk |
| Responsible (RNAME) | hostmaster@mailrelay.e-studio.dk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 12:02:25 | 816ms | 3 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-27 10:20:15 | 981ms | 3 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-03 00:48:48 | 4438ms | 3 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-23 11:41:53 | 5543ms | 3 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-21 16:35:06 | 1173ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 17:01:02 shown | 968ms | 3 NS 1 A 3 MX | 🔒 Secure |