niekerk.dk is a .dk domain served by 2 nameservers (houston.ns.cloudflare.com, margaret.ns.cloudflare.com). It was registered on 8 January 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by niekerk-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.56 |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (niekerk.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.niekerk.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:f152865c@mxtoolbox.dmarc-report.com; ruf=mailto:f152865c@forensics.dmarc-report.com; fo=1 |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves niekerk.dk: no address www.niekerk.dk: no address |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-niekerk-dk._domainkey.niekerkdk.onmicrosoft.com | RSA · ~1024 bit below 2048 bit |
| selector2 | selector2-niekerk-dk._domainkey.niekerkdk.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: 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 | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2416819573 |
| Primary NS (MNAME) | houston.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2018-01-08 |
| Expires | 2027-01-31 (96d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-24 05:27:20 shown | 630ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-10-07 18:21:29 | 3236ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-30 17:02:27 | 847ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-29 05:22:44 | 2180ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-27 04:43:47 | 794ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-26 04:24:13 | 1351ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-18 12:48:30 | 1536ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-11 10:27:15 | 1305ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-07 17:37:14 | 2081ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-26 16:52:32 | 1217ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-08 08:11:35 | 1437ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-05 20:25:40 | 1865ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-29 18:00:49 | 2348ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-15 12:25:32 | 1363ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-03 16:23:16 | 2846ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-24 07:46:58 | 862ms | 2 NS 0 A 1 MX | ❓ Unknown |
| 2026-06-17 12:05:37 | 1054ms | 2 NS 0 A 1 MX | 🔓 Insecure |