letlon.dk is a .dk domain served by 6 nameservers (df-ns01.skat.dk, df-ns02.skat.dk, df-ns03.skat.dk and 3 more). It was registered on 10 April 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.letlon.dk. The zone is DNSSEC-signed and validates, 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 1800s | mail.letlon.dk | 193.162.204.201 | — | AS25384 Kyndryl Danmark ApS |
| TXT Record |
|---|
| SKAT |
| v=spf1 -all |
| Policy | Record (letlon.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.letlon.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:fd0c97ad@in.mailhardener.com; ruf=mailto:fd0c97ad@in.mailhardener.com |
| www CNAME | www.letloen.dk (all on letloen.dk) → 147.29.150.74 (AS3292) |
| www vs bare domain | Only www resolves (all like this) |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| dkim | — | RSA Invalid key data — receivers can't verify signatures |
| s1 | — | RSA Invalid key data — receivers can't verify signatures |
| s2 | — | RSA Invalid key data — receivers can't verify signatures |
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: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2025091850 |
| Primary NS (MNAME) | df-ns01.skat.dk |
| Responsible (RNAME) | hostmaster@csc.dk |
| Refresh | 14400s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2000-04-10 |
| Expires | 2027-07-31 (285d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-16 16:15:37 | 584ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-06 23:19:13 | 4652ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-29 22:48:53 | 443ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-29 03:26:01 | 578ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-28 03:04:01 | 1175ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-27 02:34:56 | 544ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-23 19:09:46 | 608ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-26 18:46:35 | 1517ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-25 01:45:39 | 608ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-24 02:01:47 | 3547ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-14 11:10:49 | 3610ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-12 21:05:15 | 795ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-03 23:48:56 | 1664ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-01 23:06:50 shown | 8745ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-22 21:04:42 | 10653ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-21 16:47:34 | 5399ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-15 01:07:16 | 858ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-10 06:50:33 | 16911ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-01 22:03:04 | 944ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-28 12:45:06 | 646ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-21 07:59:53 | 2242ms | 6 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-17 11:42:48 | 1288ms | 6 NS 0 A 1 MX | 🔒 Secure |