nikolajhave.dk is a .dk domain served by 2 nameservers (bonnie.ns.cloudflare.com, gerald.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.52.181 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, aspmx3.googlemail.com and 5 more. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.52.181 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.202.150 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3035::ac43:ca96 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::6815:34b5 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.52.181,172.67.202.150 ech=AEX+DQBBVwAgACCMfw4T3q1qqkYA+bhgMOEBh7kVJ/GYmCvejGjXbxDZFwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:ca96,2606:4700:3036::6815:34b5 |
| TXT Record |
|---|
| google-site-verification=7_dJ3aFLqjWhTL0uPsyNYdoJ1RYj4LIxa6qyl2K0Cdw |
| google-site-verification=g8l1iW5GP-ZxoUunw7whHtbRGMTuSpyQPncdrcIgiGM |
| www | 104.21.52.181 172.67.202.150 2606:4700:3035::ac43:ca96 2606:4700:3036::6815:34b5 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network nikolajhave.dk: 104.21.52.181 172.67.202.150 2606:4700:3035::ac43:ca96 2606:4700:3036::6815:34b5 (AS13335) www.nikolajhave.dk: 104.21.52.181 172.67.202.150 2606:4700:3035::ac43:ca96 2606:4700:3036::6815:34b5 (AS13335) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Delete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2416275817 |
| Primary NS (MNAME) | bonnie.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 01:02:56 shown | 1099ms | 2 NS 2 A 7 MX | 🔓 Insecure |
| 2026-09-30 00:55:16 | 717ms | 2 NS 2 A 7 MX | 🔓 Insecure |
| 2026-09-28 05:44:29 | 1355ms | 2 NS 2 A 7 MX | 🔓 Insecure |
| 2026-09-26 22:45:20 | 1119ms | 2 NS 2 A 7 MX | 🔓 Insecure |
| 2026-09-25 22:17:45 | 1058ms | 2 NS 2 A 7 MX | 🔓 Insecure |
| 2026-09-21 02:51:37 | 1362ms | 2 NS 2 A 7 MX | 🔓 Insecure |
| 2026-09-07 03:52:55 | 2293ms | 2 NS 2 A 7 MX | 🔓 Insecure |
| 2026-08-28 13:04:07 | 787ms | 2 NS 2 A 7 MX | 🔓 Insecure |
| 2026-08-14 04:50:58 | 2234ms | 2 NS 2 A 7 MX | 🔓 Insecure |
| 2026-07-28 01:37:47 | 4054ms | 2 NS 2 A 7 MX | 🔓 Insecure |
| 2026-07-21 12:16:09 | 1976ms | 2 NS 2 A 7 MX | 🔓 Insecure |
| 2026-06-30 14:13:10 | 1335ms | 2 NS 2 A 7 MX | 🔓 Insecure |
| 2026-06-27 10:57:16 | 1755ms | 2 NS 2 A 7 MX | 🔓 Insecure |
| 2026-06-25 13:47:55 | 1074ms | 2 NS 2 A 7 MX | 🔓 Insecure |
| 2026-06-17 13:12:59 | 3670ms | 2 NS 2 A 7 MX | 🔓 Insecure |