4energy.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 16 December 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 204.168.183.91 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by 4energy-dk.mail.protection.outlook.com. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns01.one.com | — | — | — |
| ns02.one.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 204.168.183.91 | — | static.91.183.168.204.clients.your-server.de | AS24940 | Hetzner Online GmbH | 204.168.128.0/17 | 🇩🇪 Germany | — |
| TXT Record |
|---|
| google-site-verification=2YsppxvsdmQxe_isyBMUBifMlKGuhnRHbAsOGeIvexc |
| MS=ms85783953 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (4energy.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| www | 104.21.42.180 172.67.207.122 2606:4700:3030::6815:2ab4 2606:4700:3032::ac43:cf7a (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-4energy-dk._domainkey.4energy630.k-v1.dkim.mail.microsoft | RSA · ~2048 bit |
| selector2 | selector2-4energy-dk._domainkey.4energy630.k-v1.dkim.mail.microsoft | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026060901 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | CURANET A/S |
| Registered | 2025-12-16 |
| Expires | 2026-12-15 (55d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 10:58:39 | 2239ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-09 17:33:25 | 1649ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-28 07:39:14 | 1497ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-18 22:26:07 | 1271ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-31 09:34:46 | 1990ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-29 23:21:46 | 1897ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 12:59:24 | 1581ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-07 03:33:35 | 1996ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-02 18:56:10 | 10273ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-02 18:37:16 | 1043ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-26 16:57:05 | 1954ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 13:14:31 shown | 1589ms | 2 NS 1 A 1 MX | 🔒 Secure |