prestabox.dk is a .dk domain served by 2 nameservers (albert.ns.cloudflare.com, emily.ns.cloudflare.com). It was registered on 22 June 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.18.12.241 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by .. 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 |
|---|---|---|---|---|---|---|---|
| 104.18.12.241 | 300s | — | AS13335 | Cloudflare, Inc. | 104.16.0.0/14 | — | — |
| 104.18.13.241 | 300s | — | AS13335 | Cloudflare, Inc. | 104.16.0.0/14 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.18.12.241 |
| 🔶 Autoconfig | 104.18.12.241 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700::6812:cf1 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:0:0:0:0:0:0/41 | 🇺🇸 United States | — |
| 2606:4700::6812:df1 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:0:0:0:0:0:0/41 | 🇺🇸 United States | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h2" ipv4hint=104.18.12.241,104.18.13.241 ipv6hint=2606:4700::6812:cf1,2606:4700::6812:df1 |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (prestabox.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.prestabox.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; aspf=s; adkim=s; |
| www | 104.18.12.241 104.18.13.241 2606:4700::6812:cf1 2606:4700::6812:df1 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network prestabox.dk: 104.18.12.241 104.18.13.241 2606:4700::6812:cf1 2606:4700::6812:df1 (AS13335) www.prestabox.dk: 104.18.12.241 104.18.13.241 2606:4700::6812:cf1 2606:4700::6812:df1 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 0/10 · 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 | 2416114716 |
| Primary NS (MNAME) | albert.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | 1API GmbH |
| Registered | 2010-06-22 |
| Expires | 2027-06-30 (253d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-29 21:03:38 shown | 1630ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-28 20:52:15 | 712ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 20:19:47 | 602ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-24 19:52:36 | 581ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-06 09:30:16 | 1358ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-26 20:36:06 | 876ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-21 05:26:00 | 25082ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-02 23:05:44 | 935ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-27 22:08:05 | 2049ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-26 14:20:00 | 852ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-18 07:07:19 | 673ms | 2 NS 2 A 0 MX | 🔓 Insecure |