openscreen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 11 January 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 192.38.84.65 is hosted by FSKNET-DK Forskningsnettet - Danish network for Research and Education (AS1835) in Denmark. Mail is handled by mx1.spamfilter.cc, mx2.spamfilter.cc 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 our latest 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 |
|---|---|---|---|---|---|---|---|
| 192.38.84.65 | 43200s | redirector.ait.dtu.dk | AS1835 | FSKNET-DK Forskningsnettet - Danish network for Research and Education | 192.38.0.0/17 | 🇩🇰 Denmark | Brønshøj |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | redirector.ait.dtu.dk → 192.38.84.65 |
| 🔶 Autoconfig | redirector.ait.dtu.dk → 192.38.84.65 |
| www CNAME | redirector.ait.dtu.dk (all on dtu.dk) → 192.38.84.65 (AS1835) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.openscreen.dk | redirector.ait.dtu.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100901 |
| 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 | Punktum dk A/S (direct) |
| Registered | 2011-01-11 |
| Expires | 2027-01-31 (106d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-10 07:21:31 shown | 2309ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-06 11:13:46 | 1129ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-30 10:41:25 | 945ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-26 04:47:27 | 1232ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-03 09:35:38 | 3276ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-26 15:46:18 | 1206ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-26 00:00:25 | 1341ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-27 17:30:15 | 2604ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-17 13:06:42 | 809ms | 2 NS 1 A 3 MX | 🔒 Secure |