bystroom.dk is a .dk domain served by 2 nameservers (nelly.ns.cloudflare.com, noah.ns.cloudflare.com). It was registered on 23 March 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.26.106 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 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 |
|---|---|---|---|---|---|---|---|
| 104.21.26.106 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.135.223 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.135.223 |
| 🔶 Autoconfig | 104.21.26.106 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:1a6a | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3033::ac43:87df | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.26.106,172.67.135.223 ech=AEX+DQBBCAAgACCH88KR3R189rCGnoUdAJ7oAauzIhzBUSEi8hcDLvITVAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:1a6a,2606:4700:3033::ac43:87df |
| TXT Record |
|---|
| google-site-verification=lpbQ0K-Wu39-Bnx1WLsDof3YjFTrdhmkv6OHfAHixns |
| www | 104.21.26.106 172.67.135.223 2606:4700:3031::6815:1a6a 2606:4700:3033::ac43:87df (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network bystroom.dk: 104.21.26.106 172.67.135.223 2606:4700:3031::6815:1a6a 2606:4700:3033::ac43:87df (AS13335) www.bystroom.dk: 104.21.26.106 172.67.135.223 2606:4700:3031::6815:1a6a 2606:4700:3033::ac43:87df (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| 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 | 2416426970 |
| Primary NS (MNAME) | nelly.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | NETIM |
| Registered | 2026-03-23 |
| Expires | 2027-03-22 (156d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-02 21:53:15 shown | 477ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-30 21:48:17 | 595ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-25 22:49:52 | 591ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-24 03:42:05 | 748ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-11 18:00:57 | 1689ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-20 02:02:42 | 918ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-04 08:29:57 | 1551ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-27 03:56:27 | 1529ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-26 16:49:19 | 1773ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-23 13:57:36 | 826ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-21 18:12:28 | 543ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-16 18:25:19 | 450ms | 2 NS 2 A 0 MX | 🔓 Insecure |