instrudent.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 11 June 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.47.247.18 is hosted by One.com A/S (AS51468). Mail is handled by smtp.google.com. The zone is DNSSEC-signed but currently fails validation, 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 |
|---|---|---|---|---|---|---|---|
| 195.47.247.18 | 3600s | one.com.webforward.g1i.one | AS51468 | One.com A/S | 195.47.247.0/24 | — | — |
| TXT Record |
|---|
| google-site-verification=D4JnZyqaOEUAhWB3rYTo7MxD0PTyl7fdDZiXHdaBdYQ |
| www CNAME | raybrightindustries.odoo.com (all on odoo.com) |
| www vs bare domain | Different networks (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| — | 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 | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | broken trust chain resolving 'instrudent.dk/DS/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2026061701 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2026-06-11 |
| Expires | 2027-06-10 (230d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-19 18:47:22 | 2393ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-13 13:24:07 | 1269ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 02:14:01 | 418ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-18 02:29:06 | 784ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-11 12:51:38 | 575ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 04:32:53 | 929ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-18 20:13:46 | 1461ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-13 18:43:37 | 1387ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-18 23:06:55 | 1790ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-12 13:29:29 | 5124ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-29 08:24:55 | 633ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 10:14:19 shown | 568ms | 2 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-19 07:01:55 | 2174ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 15:13:54 | 300ms | 0 NS 0 A 0 MX | ❓ Unknown |