niels-bjorn.dk is a .dk domain served by 2 nameservers (demi.ns.cloudflare.com, rajeev.ns.cloudflare.com). It was registered on 5 February 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.187.145.40 is hosted by Antenneforeningen Aarhus (AS201505) in Denmark. Mail is handled by mail.niels-bjorn.dk. 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 |
|---|---|---|---|---|---|---|---|
| 185.187.145.40 | — | — | AS201505 | Antenneforeningen Aarhus | 185.187.144.0/22 | 🇩🇰 Denmark | Aarhus |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mail.niels-bjorn.dk | 185.187.145.40 | — | AS201505 Antenneforeningen Aarhus |
| TXT Record |
|---|
| v=spf1 mx -all |
| Policy | Record (niels-bjorn.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx -all |
| Policy | Record (_dmarc.niels-bjorn.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:postmaster@niels-bjorn.dk |
| www | 104.21.81.44 172.67.138.28 2606:4700:3034::ac43:8a1c 2606:4700:3035::6815:512c (AS13335) (address records, no CNAME) |
| www vs bare domain | Different networks niels-bjorn.dk: 185.187.145.40 (AS201505) (all like this)www.niels-bjorn.dk: 104.21.81.44 172.67.138.28 2606:4700:3034::ac43:8a1c 2606:4700:3035::6815:512c (AS13335) |
| Wildcard | No |
DNS lookups: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2406997833 |
| Primary NS (MNAME) | demi.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 | 2018-02-05 |
| Expires | 2028-02-29 (489d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 14:09:53 | 1183ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 01:35:00 | 761ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-27 17:18:01 | 5219ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-14 03:03:20 | 1010ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-01 10:46:53 | 1224ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-28 12:28:46 | 1116ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-27 12:10:26 | 9579ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 22:52:39 | 565ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-15 01:12:23 | 2877ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-04 00:32:43 | 945ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-19 23:46:11 | 3471ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 13:28:58 shown | 603ms | 2 NS 1 A 1 MX | 🔓 Insecure |