kostogenergi.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 8 February 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 16.170.93.229 is hosted by Amazon.com, Inc. (AS16509) in Sweden. Mail is handled by mailplus2.dir.dk, backup-mx.dir.dk. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 16.170.93.229 | 300s | ec2-16-170-93-229.eu-north-1.compute.amazonaws.com | AS16509 | Amazon.com, Inc. | 16.168.0.0/14 | 🇸🇪 Sweden | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 21600s | mailplus2.dir.dk | 104.247.81.99 | — | AS206834 Team Internet AG |
| 20 | 21600s | backup-mx.dir.dk | 104.247.81.99 | — | AS206834 Team Internet AG |
| www CNAME | kostogenergi.dk (all on kostogenergi.dk) → 16.170.93.229 (AS16509) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2023102001 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2005-02-08 |
| Expires | 2027-02-28 (127d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 18:25:59 | 1622ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-09 09:57:21 | 1430ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-02 04:25:58 | 1724ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-01 04:21:43 | 1547ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-11 00:29:16 shown | 1483ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-19 21:56:29 | 2232ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-18 08:24:33 | 714ms | 4 NS 1 A 2 MX | 🔒 Secure |