opgave-udbud.dk is a .dk domain served by 2 nameservers (deb.ns.cloudflare.com, malcolm.ns.cloudflare.com). It was registered on 3 March 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.4.52 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by .. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.4.52 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.153.229 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::ac43:99e5 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:434 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.4.52,172.67.153.229 ech=AEX+DQBBSQAgACBNtS4tkEqroHZdRJpF3WtXhqh+ta59ZEOMaUO7eu66LQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:99e5,2606:4700:3037::6815:434 |
| www | 188.114.96.1 188.114.97.1 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network opgave-udbud.dk: 104.21.4.52 172.67.153.229 2606:4700:3032::ac43:99e5 2606:4700:3037::6815:434 (AS13335) www.opgave-udbud.dk: 188.114.96.1 188.114.97.1 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2417808273 |
| Primary NS (MNAME) | deb.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2026-03-03 |
| Expires | 2027-03-02 (128d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-18 16:02:44 shown | 404ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-01 01:26:00 | 499ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-21 09:56:12 | 1302ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-14 08:13:32 | 819ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-25 14:36:44 | 1220ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-21 10:26:16 | 936ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-16 13:25:15 | 1655ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-24 23:34:51 | 856ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-19 18:00:15 | 2433ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 17:03:08 | 2874ms | 2 NS 2 A 0 MX | 🔓 Insecure |