xstal.dk is a .dk domain served by 2 nameservers (major.ns.cloudflare.com, stella.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.54.64 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail1.xstal.dk. The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 104.21.54.64 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.136.9 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail1.xstal.dk | 104.21.54.64 172.67.136.9 2606:4700:3031::ac43:8809 2606:4700:3037::6815:3640 |
— — — — |
AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.54.64 |
| 🔶 Autoconfig | 104.21.54.64 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::ac43:8809 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:3640 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.54.64,172.67.136.9 ech=AEX+DQBBMwAgACD9pVYioWdsZOEl/fWHzzBOIdw9o1AlZua40eIMniqPSwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:8809,2606:4700:3037::6815:3640 |
| TXT Record |
|---|
| v=spf1 ip4:45.95.180.10 ip6:2a02:4780:8:1196:0:3ad3:f225:6 ~all |
| Policy | Record (xstal.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:45.95.180.10 ip6:2a02:4780:8:1196:0:3ad3:f225:6 ~all |
| Policy | Record (_dmarc.xstal.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:3d9976a22dfa4bab91a39522cf555bc5@dmarc-reports.cloudflare.net |
| www | 104.21.54.64 172.67.136.9 2606:4700:3031::ac43:8809 2606:4700:3037::6815:3640 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 0/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.xstal.dk | m12ZgFVseHQT61fSnuMM7OQBC5eFpw7yaZ3AklD2o00 |
| TXT | _acme-challenge.xstal.dk | yGRjwjfwaqoyTpxmR486dPT906ZORURE24ch_nLutdU |
| 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 | 2414610842 |
| Primary NS (MNAME) | major.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-21 02:59:30 | 702ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 19:54:38 | 561ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 21:50:45 | 717ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 03:23:44 | 696ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-25 02:52:29 | 868ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-24 12:52:50 | 2458ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-16 11:43:03 shown | 3595ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-02 07:45:10 | 1417ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-31 14:12:40 | 558ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-26 14:36:21 | 759ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-01 00:53:09 | 1042ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-21 14:09:35 | 1691ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-21 08:04:00 | 960ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 12:13:18 | 1278ms | 2 NS 2 A 1 MX | 🔓 Insecure |