tekhus.dk is a .dk domain served by 2 nameservers (cloe.ns.cloudflare.com, sri.ns.cloudflare.com). It was registered on 10 October 2018 (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 aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 | 300s | any-in-2015.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| 216.239.34.21 | 300s | any-in-2215.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| 216.239.36.21 | 300s | any-in-2415.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| 216.239.38.21 | 300s | any-in-2615.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| TXT Record |
|---|
| google-site-verification=Jzr-sB-_cjqJgqAEfa5umBSnoPWJmyIxikLSslMCk28 |
| v=spf1 include:_spf.google.com include:spf.simply.com -all |
| Policy | Record (tekhus.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.google.com include:spf.simply.com -all |
| Policy | Record (_dmarc.tekhus.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; |
| www CNAME | ghs.googlehosted.com (all on googlehosted.com) |
| www vs bare domain | Same network tekhus.dk: 216.239.32.21 216.239.34.21 216.239.36.21 216.239.38.21 (AS15169) www.tekhus.dk: 142.251.9.121 2a00:1450:4025:c01::79 (AS15169) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | Revoked (empty key) |
| dkim | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| k1 | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| s1 | — | Revoked (empty key) |
| s2 | — | Revoked (empty key) |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2412066496 |
| Primary NS (MNAME) | cloe.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2018-10-10 |
| Expires | 2027-07-31 (286d) |
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 08:04:03 | 2451ms | 2 NS 4 A 5 MX | 🔓 Insecure |
| 2026-10-13 06:23:58 | 1038ms | 2 NS 4 A 5 MX | 🔓 Insecure |
| 2026-10-12 05:31:25 | 3301ms | 2 NS 4 A 5 MX | 🔓 Insecure |
| 2026-09-30 07:30:47 | 1470ms | 2 NS 4 A 5 MX | 🔓 Insecure |
| 2026-09-23 02:12:26 | 1129ms | 2 NS 4 A 5 MX | 🔓 Insecure |
| 2026-08-28 01:41:12 | 846ms | 2 NS 4 A 5 MX | 🔓 Insecure |
| 2026-08-15 09:28:08 shown | 4462ms | 2 NS 4 A 5 MX | 🔓 Insecure |
| 2026-08-07 05:49:29 | 1950ms | 2 NS 4 A 5 MX | 🔓 Insecure |
| 2026-07-11 07:38:15 | 2153ms | 2 NS 4 A 5 MX | 🔓 Insecure |
| 2026-06-27 03:03:51 | 1265ms | 2 NS 4 A 5 MX | 🔓 Insecure |
| 2026-06-24 01:14:29 | 1089ms | 2 NS 4 A 5 MX | 🔓 Insecure |
| 2026-06-20 15:18:15 | 761ms | 2 NS 4 A 5 MX | 🔓 Insecure |
| 2026-06-17 11:38:46 | 1684ms | 2 NS 4 A 5 MX | 🔓 Insecure |