thsim.dk is a .dk domain served by 2 nameservers (corey.ns.cloudflare.com, naomi.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.88.61 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by cc9b7a95.21.ik2.com, cc9b7a95.22.ik2.io. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.88.61 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.173.81 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | cc9b7a95.21.ik2.com | 162.213.157.172 38.246.57.230 64.38.239.83 |
s236a.ik2.com s602e.ik2.com s480d.ik2.com |
AS54527 Astute Internet AS395584 Data Management AS20454 SECURED SERVERS LLC |
| 20 | 300s | cc9b7a95.22.ik2.io | — | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.173.81 |
| 🔶 Autoconfig | 104.21.88.61 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::6815:583d | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3033::ac43:ad51 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.88.61,172.67.173.81 ech=AEX+DQBBAQAgACDH637SZk7g9uFnxjerXpqmRAJGQAjXXySqWwA2/JIzeAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:583d,2606:4700:3033::ac43:ad51 |
| TXT Record |
|---|
| v=spf1 include:_spf.google.com ~all |
| Policy | Record (thsim.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.google.com ~all |
| www | 104.21.88.61 172.67.173.81 2606:4700:3032::6815:583d 2606:4700:3033::ac43:ad51 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 1/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.thsim.dk | 4eied2MX_5BENj6Dc0wOZ0PtPSx6Cb8d4RveSUaPpOg |
| TXT | _acme-challenge.thsim.dk | T4Q2c_4ehLnvjo0hrY7XxpbWfU3su_ltq37KA473Mf4 |
| 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 | 2414297938 |
| Primary NS (MNAME) | corey.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 05:16:23 | 4347ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-29 05:09:02 | 3873ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-23 00:11:41 | 1736ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-15 23:17:52 | 2518ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-11 05:20:18 shown | 2587ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-04 02:20:36 | 6246ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-25 22:23:31 | 5385ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-24 12:40:06 | 7481ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-26 21:30:51 | 5180ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-22 05:15:18 | 2222ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-18 08:20:55 | 2910ms | 2 NS 2 A 2 MX | 🔓 Insecure |