prastbro.dk is a .dk domain served by 2 nameservers (bruce.ns.cloudflare.com, ullis.ns.cloudflare.com). It was registered on 15 January 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.48.187 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by prastbro-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 104.21.48.187 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.187.196 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.48.187 |
| 🔶 Autoconfig | 104.21.48.187 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::ac43:bbc4 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::6815:30bb | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBBNAAgACBMK/7F33iXZHpAMgeb7TxHfeXAUuBn38rbphrxMROVBQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1 |
| TXT Record |
|---|
| apple-domain-verification=oUmiSB6PKH2XcIPg |
| facebook-domain-verification=a4jcw9gqil5qv3rsntgeg2vu63abjk |
| MS=ms89325962 |
| v=spf1 include:spf.protection.outlook.com include:spf.simply.com ~all |
| Policy | Record (prastbro.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.protection.outlook.com include:spf.simply.com ~all |
| Policy | Record (_dmarc.prastbro.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject; pct=100; ruf=mailto:thomas@prastbro.dk; |
| www | 104.21.48.187 172.67.187.196 2606:4700:3033::ac43:bbc4 2606:4700:3036::6815:30bb (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network prastbro.dk: 104.21.48.187 172.67.187.196 2606:4700:3033::ac43:bbc4 2606:4700:3036::6815:30bb (AS13335) www.prastbro.dk: 104.21.48.187 172.67.187.196 2606:4700:3033::ac43:bbc4 2606:4700:3036::6815:30bb (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-prastbro-dk._domainkey.prastbro.onmicrosoft.com | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 2/10 · 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 | 2417037913 |
| Primary NS (MNAME) | bruce.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 | 2005-01-15 |
| Expires | 2027-01-31 (104d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 18:14:39 shown | 2409ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 10:54:06 | 1162ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 12:25:57 | 1364ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-22 11:02:35 | 1330ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-07 05:53:50 | 1890ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-22 22:21:28 | 1339ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-21 02:33:22 | 710ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 15:23:36 | 2196ms | 2 NS 2 A 1 MX | 🔓 Insecure |