alcoa.dk is a .dk domain served by 4 nameservers (edns1.ultradns.biz, edns1.ultradns.com, edns1.ultradns.net and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. The zone is not DNSSEC-signed, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| edns1.ultradns.biz | — | — | — |
| edns1.ultradns.com | — | — | — |
| edns1.ultradns.net | — | — | — |
| edns1.ultradns.org | — | — | — |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves alcoa.dk: no address www.alcoa.dk: no address |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 1476118715 |
| Primary NS (MNAME) | edns1.ultradns.biz |
| Responsible (RNAME) | premiumdns@support.neustar |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-29 18:45:18 | 474ms | 4 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-18 23:32:56 | 1023ms | 4 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-27 15:48:35 | 683ms | 4 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-02 00:04:16 | 1510ms | 4 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-16 12:47:09 shown | 2403ms | 4 NS 0 A 0 MX | 🔓 Insecure |