certsafe.dk is a .dk domain served by 2 nameservers (frank.ns.cloudflare.com, walk.ns.cloudflare.com). It was registered on 12 October 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 216.239.32.21 is hosted by Google LLC (AS15169) in United States. Mail is handled by route3.mx.cloudflare.net, route1.mx.cloudflare.net and 1 more. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 216.239.32.21 | 300s | any-in-2015.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| 216.239.34.21 | 300s | any-in-2215.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| 216.239.36.21 | 300s | any-in-2415.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| 216.239.38.21 | 300s | any-in-2615.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | certsafe.dk → 216.239.38.21 |
| 🔶 Autoconfig | certsafe.dk → 216.239.34.21 |
| TXT Record |
|---|
| google-site-verification=mUVhEmVTNtxIfxnuXOuqDB4art8oMBQR1WmxDjO9uAo |
| v=spf1 include:_spf.mx.cloudflare.net -all |
| Policy | Record (certsafe.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.mx.cloudflare.net -all |
| Policy | Record (_dmarc.certsafe.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:3e1ab68924b643ecac87fbe70813cfe3@dmarc-reports.cloudflare.net |
| www CNAME | certsafe.dk (all on certsafe.dk) |
| www vs bare domain | Same network certsafe.dk: 216.239.32.21 216.239.34.21 216.239.36.21 216.239.38.21 (AS15169) www.certsafe.dk: 216.239.32.21 216.239.34.21 216.239.36.21 216.239.38.21 (AS15169) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.certsafe.dk | certsafe.dk |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2408453910 |
| Primary NS (MNAME) | frank.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2012-10-12 |
| Expires | 2029-10-31 (1110d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 14:05:19 | 1621ms | 2 NS 4 A 3 MX | 🔒 Secure |
| 2026-10-06 12:15:14 | 3589ms | 2 NS 4 A 3 MX | 🔒 Secure |
| 2026-10-05 09:24:33 | 801ms | 2 NS 4 A 3 MX | 🔒 Secure |
| 2026-09-30 08:58:38 | 967ms | 2 NS 4 A 3 MX | 🔒 Secure |
| 2026-09-25 23:39:46 | 1323ms | 2 NS 4 A 3 MX | 🔒 Secure |
| 2026-09-16 23:56:32 | 1549ms | 2 NS 4 A 3 MX | 🔒 Secure |
| 2026-09-06 15:31:19 | 10245ms | 2 NS 4 A 3 MX | 🔒 Secure |
| 2026-08-27 19:53:51 | 1634ms | 2 NS 4 A 3 MX | 🔒 Secure |
| 2026-08-24 18:15:56 | 8567ms | 2 NS 4 A 3 MX | 🔒 Secure |
| 2026-08-19 22:45:38 | 16563ms | 2 NS 4 A 3 MX | 🔒 Secure |
| 2026-08-01 09:16:46 | 2071ms | 2 NS 4 A 3 MX | 🔒 Secure |
| 2026-07-28 12:53:39 | 10898ms | 2 NS 4 A 3 MX | 🔒 Secure |
| 2026-07-26 11:50:37 | 1806ms | 2 NS 4 A 3 MX | 🔒 Secure |
| 2026-07-03 11:03:07 shown | 1904ms | 2 NS 4 A 3 MX | 🔒 Secure |
| 2026-07-01 01:17:32 | 1199ms | 2 NS 4 A 3 MX | 🔒 Secure |
| 2026-06-26 21:08:07 | 1875ms | 2 NS 4 A 3 MX | 🔒 Secure |
| 2026-06-22 11:15:01 | 3322ms | 2 NS 4 A 3 MX | 🔒 Secure |
| 2026-06-16 20:11:06 | 1176ms | 2 NS 4 A 3 MX | 🔒 Secure |