nucbox.dk is a .dk domain served by 2 nameservers (alexia.ns.cloudflare.com, major.ns.cloudflare.com). It was registered on 28 July 2026 (WHOIS) and first appeared in the .dk zone on 29 July 2026. Its website address 104.21.31.220 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 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 |
|---|---|---|---|---|---|---|---|
| 104.21.31.220 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.180.4 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | . Null MX — domain accepts no email (RFC 7505) | |||
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.31.220 |
| 🔶 Autoconfig | 172.67.180.4 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:1fdc | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:b404 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.31.220,172.67.180.4 ech=AEX+DQBBNwAgACC3MLfW97G7aLujLZqxuYE5P3+C1bidD66oHZNZL8SSLQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:1fdc,2606:4700:3037::ac43:b404 |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (nucbox.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.nucbox.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com; cansignhttpexchanges=yes |
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog; cansignhttpexchanges=yes |
| 0 | issue | ssl.com |
| 0 | issuewild | comodoca.com |
| 0 | issuewild | digicert.com; cansignhttpexchanges=yes |
| 0 | issuewild | letsencrypt.org |
| 0 | issuewild | pki.goog; cansignhttpexchanges=yes |
| 0 | issuewild | ssl.com |
| www | 104.21.31.220 172.67.180.4 2606:4700:3031::6815:1fdc 2606:4700:3037::ac43:b404 (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| 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 | 2416197707 |
| Primary NS (MNAME) | alexia.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 | 2026-07-28 |
| Expires | 2027-07-27 (277d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 21:41:41 | 1468ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-07 12:51:13 | 557ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 19:19:14 | 554ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 04:33:28 shown | 1635ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-29 04:15:30 | 781ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-27 03:45:21 | 776ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 03:36:52 | 757ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-25 03:21:34 | 10055ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-20 21:23:17 | 1568ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-29 08:36:28 | 2776ms | 2 NS 2 A 1 MX | 🔓 Insecure |