fourthground.dk is a .dk domain served by 2 nameservers (amanda.ns.cloudflare.com, etienne.ns.cloudflare.com). It was registered on 17 June 2026 (WHOIS) and first appeared in the .dk zone on 18 June 2026. Its website address 104.21.36.45 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by .. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.36.45 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.185.50 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::6815:242d | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::ac43:b932 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.36.45,172.67.185.50 ech=AEX+DQBBxgAgACDU02VX/J24gNRadHBUv0UeO9HK/mhXzzhdTfHDskF6WAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:242d,2606:4700:3035::ac43:b932 |
| www CNAME | fourthground.odoo.com (all on odoo.com) → 91.134.82.36 (AS16276) |
| www vs bare domain | Different networks fourthground.dk: 104.21.36.45 172.67.185.50 2606:4700:3033::6815:242d 2606:4700:3035::ac43:b932 (AS13335) (all like this)www.fourthground.dk: 91.134.82.36 (AS16276) |
| Wildcard | No |
| 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 | 2413611282 |
| Primary NS (MNAME) | amanda.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2026-06-17 |
| Expires | 2027-06-16 (238d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 02:44:48 | 400ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-31 16:58:04 shown | 1057ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-30 15:03:14 | 1654ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-03 15:09:57 | 7972ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 16:33:05 | 4883ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-24 16:22:58 | 575ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-19 22:03:25 | 1396ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 08:43:11 | 714ms | 2 NS 1 A 0 MX | 🔒 Secure |