thomasblachman.dk is a .dk domain served by 2 nameservers (ken.ns.cloudflare.com, lily.ns.cloudflare.com). It was registered on 20 August 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.18.155 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 |
|---|---|---|---|---|---|---|---|
| 104.21.18.155 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.182.180 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3035::6815:129b | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:b6b4 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.18.155,172.67.182.180 ech=AEX+DQBBGAAgACBCiHmV5dIEqZ8izKj5NVLOm4BVn+OJurRNz+Ln7RaucQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:129b,2606:4700:3037::ac43:b6b4 |
| www | 104.21.18.155 172.67.182.180 2606:4700:3031::6815:129b 2606:4700:3037::ac43:b6b4 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network thomasblachman.dk: 104.21.18.155 172.67.182.180 2606:4700:3031::6815:129b 2606:4700:3037::ac43:b6b4 (AS13335) www.thomasblachman.dk: 104.21.18.155 172.67.182.180 2606:4700:3031::6815:129b 2606:4700:3037::ac43:b6b4 (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 | 2410067586 |
| Primary NS (MNAME) | ken.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 | 2020-08-20 |
| Expires | 2028-04-30 (558d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-11 17:44:35 | 1976ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-02 06:44:36 | 719ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-19 11:34:41 | 1765ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-31 11:14:43 | 1036ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-26 18:15:18 | 546ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-24 13:08:39 | 972ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-14 11:36:20 | 2384ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-21 09:48:13 shown | 2776ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-23 10:38:06 | 966ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-17 19:37:33 | 882ms | 2 NS 2 A 0 MX | 🔓 Insecure |