55north.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 198.185.159.144 is hosted by Squarespace, Inc. (AS53831) in United States. Mail is handled by 55north-dk.mail.protection.outlook.com. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.simply.com | — | — | — |
| ns2.simply.com | — | — | — |
| ns3.simply.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 198.185.159.144 | — | — | AS53831 | Squarespace, Inc. | 198.185.159.0/24 | 🇺🇸 United States | — |
| 198.185.159.145 | — | — | AS53831 | Squarespace, Inc. | 198.185.159.0/24 | 🇺🇸 United States | — |
| 198.49.23.144 | — | — | AS53831 | Squarespace, Inc. | 198.49.23.0/24 | 🇺🇸 United States | — |
| 198.49.23.145 | — | — | AS53831 | Squarespace, Inc. | 198.49.23.0/24 | 🇺🇸 United States | — |
| TXT Record |
|---|
| ms=ms89633181 |
| v=spf1 include:spf.protection.outlook.com include:_spf.spysystem.dk -all |
| Policy | Record (55north.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:_spf.spysystem.dk -all |
| www CNAME | ext-cust.squarespace.com (all on squarespace.com) |
| www vs bare domain | Same network 55north.dk: 198.185.159.144 198.185.159.145 198.49.23.144 198.49.23.145 (AS53831) www.55north.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 | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-55north-dk._domainkey.casagenteuropa.onmicrosoft.com | RSA · ~2048 bit |
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 | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2024091801 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 12:18:32 | 1706ms | 3 NS 4 A 1 MX | 🔒 Secure |
| 2026-10-07 19:51:18 | 1114ms | 3 NS 4 A 1 MX | 🔒 Secure |
| 2026-10-03 01:43:26 | 1301ms | 3 NS 4 A 1 MX | 🔒 Secure |
| 2026-09-30 01:29:20 | 1035ms | 3 NS 4 A 1 MX | 🔒 Secure |
| 2026-09-25 22:25:54 | 899ms | 3 NS 4 A 1 MX | 🔒 Secure |
| 2026-09-06 09:01:31 | 830ms | 3 NS 4 A 1 MX | 🔒 Secure |
| 2026-07-02 00:12:36 | 869ms | 3 NS 4 A 1 MX | 🔒 Secure |
| 2026-06-16 12:45:04 shown | 2929ms | 3 NS 4 A 1 MX | 🔒 Secure |