knowledgehouse.dk is a .dk domain served by 4 nameservers (ns1.dotserv.com, ns1.dotserv.net, ns2.dotserv.com and 1 more). It was registered on 8 July 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.20.217.4 is hosted by Atea A/S (AS21060) in Denmark. Mail is handled by ispc10.dotserv.com. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 178.20.217.4 | 14400s | parking.enavn.dk | AS21060 | Atea A/S | 178.20.216.0/23 | 🇩🇰 Denmark | — |
| 198.185.159.144 | 14400s | — | AS53831 | Squarespace, Inc. | 198.185.159.0/24 | 🇺🇸 United States | New York |
| 198.185.159.145 | 14400s | — | AS53831 | Squarespace, Inc. | 198.185.159.0/24 | 🇺🇸 United States | — |
| 198.49.23.144 | 14400s | — | AS53831 | Squarespace, Inc. | 198.49.23.0/24 | 🇺🇸 United States | — |
| 198.49.23.145 | 14400s | — | AS53831 | Squarespace, Inc. | 198.49.23.0/24 | 🇺🇸 United States | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | ispc10.dotserv.com | 178.20.216.55 | ispc10.dotserv.com | AS21060 Atea A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | mail.knowledgehouse.dk → 178.20.216.55 |
| TXT Record |
|---|
| v=spf1 include:_spf.dotserv.com -all |
| v=spf1 include:_spf.dotserv.com include:squarespace-mail.com -all |
| Policy | Record (knowledgehouse.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.dotserv.com -all |
| -all (hard fail) | v=spf1 include:_spf.dotserv.com include:squarespace-mail.com -all |
| Policy | Record (_dmarc.knowledgehouse.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | comodoca.com |
| 0 | issue | letsencrypt.org |
| www CNAME | ext-cust.squarespace.com (all on squarespace.com) |
| www vs bare domain | Same network knowledgehouse.dk: 198.185.159.144 198.185.159.145 198.49.23.144 198.49.23.145 (AS53831) www.knowledgehouse.dk: 198.185.159.144 198.185.159.145 198.49.23.144 198.49.23.145 (AS53831) |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 3/10 · policy: -all
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2023080701 |
| Primary NS (MNAME) | ns1.dotserv.com |
| Responsible (RNAME) | hostmaster@dotserv.com |
| Refresh | 1800s |
| Retry | 300s |
| Expire | 86400s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | FIONIA IT ApS |
| Registered | 2015-07-08 |
| Expires | 2027-07-31 (277d) |
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 |
|---|---|
| denvidendevirksomhed.dk | FIONIA IT ApS |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-24 14:22:24 | 1015ms | 4 NS 4 A 1 MX | 🔓 Insecure |
| 2026-10-23 14:00:25 | 1438ms | 4 NS 4 A 1 MX | 🔓 Insecure |
| 2026-10-17 02:47:15 | 811ms | 4 NS 4 A 1 MX | 🔓 Insecure |
| 2026-10-01 02:32:30 shown | 3815ms | 4 NS 5 A 1 MX | 🔓 Insecure |
| 2026-09-30 05:44:25 | 3507ms | 4 NS 5 A 1 MX | 🔓 Insecure |
| 2026-09-24 14:05:22 | 734ms | 4 NS 5 A 1 MX | 🔓 Insecure |
| 2026-09-21 23:09:58 | 8699ms | 4 NS 5 A 1 MX | 🔓 Insecure |
| 2026-09-14 21:39:56 | 690ms | 4 NS 4 A 1 MX | 🔒 Secure |
| 2026-08-27 09:18:05 | 896ms | 4 NS 4 A 1 MX | 🔒 Secure |
| 2026-08-26 03:29:20 | 585ms | 4 NS 4 A 1 MX | 🔒 Secure |
| 2026-06-30 02:09:38 | 685ms | 4 NS 4 A 1 MX | 🔒 Secure |
| 2026-06-18 08:29:24 | 730ms | 4 NS 4 A 1 MX | 🔒 Secure |