blue-circle.dk is a .dk domain served by 2 nameservers (harleigh.ns.cloudflare.com, konnor.ns.cloudflare.com). It was registered on 23 February 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.85.136 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 104.21.85.136 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.206.107 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:5588 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::ac43:ce6b | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.85.136,172.67.206.107 ech=AEX+DQBB8gAgACCIZ8uQXidaAaC48rHXa9UK3cXHkpyHTn9GHoptCod4GAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:5588,2606:4700:3036::ac43:ce6b |
| TXT Record |
|---|
| google-site-verification=bR1diJ8hnlk8uaHRi2ur2Fjioxz03mgkw2aLnKAeJS4 |
| google-site-verification=NT79JRAZ-Xc8UUByhGrqmc8y9HDhtMpIAqMkVAkZPPc |
| v=spf1 include:_spf.google.com ~all |
| Policy | Record (blue-circle.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.google.com ~all |
| www | 104.21.85.136 172.67.206.107 2606:4700:3030::6815:5588 2606:4700:3036::ac43:ce6b (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network blue-circle.dk: 104.21.85.136 172.67.206.107 2606:4700:3030::6815:5588 2606:4700:3036::ac43:ce6b (AS13335) www.blue-circle.dk: 104.21.85.136 172.67.206.107 2606:4700:3030::6815:5588 2606:4700:3036::ac43:ce6b (AS13335) |
| Wildcard | No |
DNS lookups: 1/10 · policy: ~all
No problems found| 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 | 2415442051 |
| Primary NS (MNAME) | harleigh.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2025-02-23 |
| Expires | 2027-02-22 (128d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 10:55:01 shown | 1618ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-09-25 18:13:43 | 1062ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-09-23 06:41:53 | 1732ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-08-30 13:54:27 | 3486ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-08-27 06:03:23 | 1124ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-08-16 06:43:12 | 4420ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-07-23 11:28:43 | 1168ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-07-02 01:29:11 | 2137ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-07-02 00:38:19 | 5288ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-06-16 15:20:07 | 4753ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-06-16 15:06:17 | 480ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-06-16 15:03:39 | 2072ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-06-16 15:00:26 | 831ms | 2 NS 2 A 5 MX | 🔓 Insecure |