thinkchina.dk is a .dk domain served by 2 nameservers (jill.ns.cloudflare.com, logan.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.6.158 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by thinkchina.dk.mx.one.com. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.6.158 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.135.1 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 7200s | thinkchina.dk.mx.one.com | — | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::ac43:8701 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:69e | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.6.158,172.67.135.1 ech=AEX+DQBBpQAgACBQRgiFg8T/trEZVFL5hLbw4U4CJqMXhHDBJLZKd6IDVAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:8701,2606:4700:3037::6815:69e |
| www | 104.21.6.158 172.67.135.1 2606:4700:3030::ac43:8701 2606:4700:3037::6815:69e (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network thinkchina.dk: 104.21.6.158 172.67.135.1 2606:4700:3030::ac43:8701 2606:4700:3037::6815:69e (AS13335) www.thinkchina.dk: 104.21.6.158 172.67.135.1 2606:4700:3030::ac43:8701 2606:4700:3037::6815:69e (AS13335) |
| 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 | 2414170909 |
| Primary NS (MNAME) | jill.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 00:52:19 | 444ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-27 00:36:34 | 592ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-17 18:23:54 | 765ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-08 20:36:10 shown | 1745ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-21 00:38:17 | 9810ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-03 01:21:28 | 9798ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 20:55:43 | 2154ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 19:25:10 | 2443ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-24 07:20:28 | 983ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-23 10:37:05 | 1111ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 16:38:19 | 1545ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-18 06:17:33 | 946ms | 2 NS 2 A 1 MX | ⚠️ Bogus |