sosusyd.dk is a registered .dk domain whose nameservers (ns1.esis.dk, ns2.esis.dk) do not answer for it, so it is currently a lame delegation and does not resolve. It was registered on 18 August 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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 |
|---|---|---|---|
| ns1.esis.dk | 185.19.134.2 | ns1.esis.dk | AS199374 Syddansk Erhvervsskole Odense-Vejle |
| ns2.esis.dk | 185.19.134.3 | ns2.esis.dk | AS199374 Syddansk Erhvervsskole Odense-Vejle |
| www | 5.103.46.109 (AS44869) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-sosusyd-dk._domainkey.sosusyd.onmicrosoft.com | RSA · ~1024 bit below 2048 bit |
| selector2 | selector2-sosusyd-dk._domainkey.sosusyd.onmicrosoft.com | 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.
| Check | Result |
|---|---|
| Validation Status | ❓ Unknown (the delegated nameservers don't answer) |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✓ Found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: timed out |
| Field | Value |
|---|---|
| Registrar | INTERNET 123 ApS |
| Registered | 2011-08-18 |
| Expires | 2027-08-31 (316d) |
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).
| Domain | Registrar |
|---|---|
| socialogsundhedsskolen-syd.dk | Punktum dk A/S (direct) |
| sosu-aabenraa.dk | Punktum dk A/S (direct) |
| sosu-syd.dk | INTERNET 123 ApS |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-17 18:40:30 | 4080ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-16 18:00:08 | 1244ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-14 15:40:25 | 1182ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-13 14:25:54 | 1285ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-11 10:49:59 | 1292ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-09 00:38:19 | 1592ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-05 19:58:00 | 1438ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-04 19:57:06 | 5159ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 19:25:57 | 1547ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 19:20:03 | 1317ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 18:51:31 | 1011ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-27 18:35:23 | 1425ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 18:19:47 shown | 65535ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-24 17:44:44 | 1469ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 16:34:35 | 1223ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-17 14:18:35 | 2113ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-16 01:38:55 | 3629ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-07 03:11:34 | 926ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-04 12:15:39 | 1254ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 22:17:05 | 1229ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 16:48:33 | 1304ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-21 10:11:57 | 6862ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-17 17:21:29 | 9075ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-15 03:23:36 | 4796ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-09 07:59:24 | 9241ms | 2 NS 1 A 1 MX | 🔒 Secure |