hovedopgave.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 16 November 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 216.239.32.21 is hosted by Google LLC (AS15169) in United States. Mail is handled by .. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 216.239.32.21 | 7200s | any-in-2015.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| 216.239.34.21 | 7200s | any-in-2215.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| 216.239.36.21 | 7200s | any-in-2415.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| 216.239.38.21 | 7200s | any-in-2615.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | hovedopgave.dk → 216.239.34.21 |
| 🔶 Autoconfig | hovedopgave.dk → 216.239.38.21 |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (hovedopgave.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| www CNAME | pub-1647368192217952.afd.ghs.google.com (all on google.com) |
| www vs bare domain | Same network hovedopgave.dk: 216.239.32.21 216.239.34.21 216.239.36.21 216.239.38.21 (AS15169) www.hovedopgave.dk: 142.250.147.121 2a00:1450:4025:c03::79 (AS15169) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 0/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.hovedopgave.dk | hovedopgave.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026061401 |
| 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 | 2007-11-16 |
| Expires | 2026-11-30 (34d) |
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).
| Domain | Registrar |
|---|---|
| lagermann.dk | GANDI SAS |
| sengeløsebylaug.dk | GANDI SAS |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 07:03:20 | 1043ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-09-30 07:14:06 | 533ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-09-24 08:52:28 | 682ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-09-18 19:48:48 | 846ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-08-27 18:26:53 | 919ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-08-27 02:01:28 | 1032ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-08-14 10:30:04 | 8917ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-07-17 10:52:42 | 929ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-07-03 19:57:34 | 668ms | 2 NS 4 A 0 MX | 🔒 Secure |
| 2026-07-03 09:45:58 | 1250ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-07-01 07:34:01 | 890ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-06-30 00:10:19 | 763ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-06-19 23:14:31 shown | 2533ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-06-18 13:43:48 | 733ms | 2 NS 4 A 1 MX | 🔒 Secure |
| 2026-06-17 13:49:11 | 266ms | 0 NS 0 A 0 MX | ❓ Unknown |