njolsen.dk is a .dk domain served by 3 nameservers (ns1.dns.services, ns2.dns.services, ns3.dns.services). It was registered on 10 March 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 57.129.53.233 is hosted by OVH SAS (AS16276) in Germany. Mail is handled by mail.njolsen.dk. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 57.129.53.233 | 3600s | flex30.flexnet.dk | AS16276 | OVH SAS | 57.128.0.0/15 | 🇩🇪 Germany | Frankfurt am Main |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.njolsen.dk | 57.129.53.233 | flex30.flexnet.dk | AS16276 OVH SAS |
| TXT Record |
|---|
| v=spf1 a mx ip4:81.4.123.120 ip6:2a00:d880:5:b1c::a8c3 -all |
| Policy | Record (njolsen.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx ip4:81.4.123.120 ip6:2a00:d880:5:b1c::a8c3 -all |
| Policy | Record (_dmarc.njolsen.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; sp=none; fo=; ri=3600 |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve (all like this) |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~1024 bit below 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 | 2022101514 |
| Primary NS (MNAME) | ns1.dns.services |
| Responsible (RNAME) | post@dns.services |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1814400s |
| Minimum (neg-cache TTL) | 7200s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2009-03-10 |
| Expires | 2027-04-30 (195d) |
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 |
|---|---|---|---|
| 2026-10-09 09:43:09 | 1030ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 05:30:46 | 493ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-21 01:10:24 shown | 4741ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-03 18:09:47 | 573ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 04:49:10 | 748ms | 3 NS 1 A 1 MX | 🔒 Secure |