operaen.dk is a .dk domain served by 4 nameservers (ns.web-solutions.dk, ns2.web-solutions.dk, ns3.web-solutions.eu and 1 more). It was registered on 5 September 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 81.7.149.249 is hosted by Sentia Denmark A/S (AS47292) in Denmark. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 81.7.149.249 | 21600s | — | AS47292 | Sentia Denmark A/S | 81.7.148.0/22 | 🇩🇰 Denmark | Kongens Lyngby |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (operaen.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.operaen.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; aspf=s; adkim=s; |
| www CNAME | operaen.dk (all on operaen.dk) → 81.7.149.249 (AS47292) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
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 | fully validated |
| Field | Value |
|---|---|
| Serial | 2006026145 |
| Primary NS (MNAME) | ns.web-solutions.dk |
| Responsible (RNAME) | hostmaster@web-solutions.dk |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 21600s |
| Field | Value |
|---|---|
| Registrar | WEB SOLUTIONS A/S |
| Registered | 2000-09-05 |
| Expires | 2027-09-30 (346d) |
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 |
|---|---|---|---|
| 2026-10-15 14:33:22 | 1403ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-08 21:10:21 | 922ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-01 20:19:54 | 1519ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-24 19:22:54 | 532ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-23 18:56:35 | 555ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-21 23:23:18 | 589ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-19 15:24:21 | 1075ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-12 04:36:12 | 805ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-05 12:53:31 | 886ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-28 06:33:37 | 815ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-28 03:25:22 shown | 468ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-20 10:32:02 | 1207ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-13 04:00:55 | 3678ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-09 05:22:12 | 686ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-03 19:15:52 | 857ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-24 02:02:47 | 8721ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-17 14:35:07 | 9594ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-09 22:23:32 | 9126ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-03 12:48:13 | 713ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-27 20:13:46 | 740ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-19 23:20:47 | 1104ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-17 15:19:06 | 601ms | 4 NS 1 A 0 MX | 🔒 Secure |