derp.dk is a .dk domain served by 2 nameservers (ns1.vercel-dns.com, ns2.vercel-dns.com). It was registered on 3 August 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 66.33.60.35 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by mx1.improvmx.com, mx2.improvmx.com. The zone is DNSSEC-signed but currently fails validation, has no DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 66.33.60.35 | 1800s | — | AS16509 | Amazon.com, Inc. | 66.33.60.0/24 | 🇺🇸 United States | — |
| 76.76.21.98 | 1800s | — | AS16509 | Amazon.com, Inc. | 76.76.21.0/24 | 🇺🇸 United States | Walnut |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 76.76.21.61 |
| 🔶 Autoconfig | 66.33.60.194 |
| TXT Record |
|---|
| v=spf1 include:spf.improvmx.com ~all |
| Policy | Record (derp.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.improvmx.com ~all |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog |
| 0 | issue | sectigo.com |
| www | 66.33.60.193 66.33.60.35 (AS16509) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 1/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | broken trust chain resolving 'derp.dk/A/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 1683468525 |
| Primary NS (MNAME) | ns1.vercel-dns.com |
| Responsible (RNAME) | hostmaster@nsone.net |
| Refresh | 43200s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2009-08-03 |
| Expires | 2028-08-31 (683d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Domain | Registrar |
|---|---|
| exelerate.dk | Punktum dk A/S (direct) |
| uptrans.dk | DANDOMAIN A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-26 20:19:05 | 932ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-26 18:35:05 | 1381ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-02 11:21:12 | 2839ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-20 04:08:15 shown | 930ms | 2 NS 2 A 2 MX | ⚠️ Bogus |
| 2026-06-17 02:10:29 | 779ms | 2 NS 2 A 2 MX | 🔓 Insecure |