signtree.dk is a .dk domain served by 2 nameservers (bonnie.ns.cloudflare.com, kurt.ns.cloudflare.com). It was registered on 6 August 2026 (WHOIS) and first appeared in the .dk zone on 7 August 2026. Its website address 104.21.31.223 is hosted by Cloudflare, Inc. (AS13335). 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 |
|---|---|---|---|---|---|---|---|
| 104.21.31.223 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.180.7 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::6815:1fdf | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:b407 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.31.223,172.67.180.7 ech=AEX+DQBBsQAgACCgLhcIuy3fqEuNGgfUAMEy4nXJGfFjRnmDovkpP+QkBwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:1fdf,2606:4700:3037::ac43:b407 |
| www | 104.21.31.223 172.67.180.7 2606:4700:3033::6815:1fdf 2606:4700:3037::ac43:b407 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network signtree.dk: 104.21.31.223 172.67.180.7 2606:4700:3033::6815:1fdf 2606:4700:3037::ac43:b407 (AS13335) www.signtree.dk: 104.21.31.223 172.67.180.7 2606:4700:3033::6815:1fdf 2606:4700:3037::ac43:b407 (AS13335) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 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 | 2411541624 |
| Primary NS (MNAME) | bonnie.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 | 2026-08-06 |
| Expires | 2027-08-05 (288d) |
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).
| Domain | Registrar |
|---|---|
| ailearning.dk | Simply.com A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-18 11:17:47 | 1231ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-07 00:28:52 | 1133ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-05 22:28:50 | 4317ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-24 20:44:11 | 2570ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-23 19:48:01 | 1348ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-14 21:16:43 | 3358ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-07 20:29:29 | 2958ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-02 15:54:03 | 5507ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-31 02:35:06 | 1605ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-27 12:26:25 | 679ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-25 11:11:04 shown | 483ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-07 09:08:24 | 899ms | 2 NS 2 A 0 MX | ❓ Unknown |