tvillingenergi.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 2 February 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx1.pub.mailpod13-cph3.one.com, mx2.pub.mailpod13-cph3.one.com and 2 more. 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 |
|---|---|---|---|---|---|---|---|
| 193.8.38.10 | — | — | AS48854 | — | — | — | — |
| www CNAME | tvillingenergi.netlify.app (all on netlify.app) |
| www vs bare domain | Same network tvillingenergi.dk: 75.2.60.5 (AS16509) www.tvillingenergi.dk: 35.157.26.135 63.176.8.218 2a05:d014:58f:6200::258 2a05:d014:58f:6200::259 (AS16509) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| — | 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.
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod13-cph3.one.com | DANE-EE · SPKI · SHA-256 | 7923F8E70F50B8C6DFFC5E73814B9D2D… |
| SMTP _25._tcp.mx2.pub.mailpod13-cph3.one.com | DANE-EE · SPKI · SHA-256 | 7923F8E70F50B8C6DFFC5E73814B9D2D… |
| SMTP _25._tcp.mx3.pub.mailpod13-cph3.one.com | DANE-EE · SPKI · SHA-256 | 7923F8E70F50B8C6DFFC5E73814B9D2D… |
| SMTP _25._tcp.mx4.pub.mailpod13-cph3.one.com | DANE-EE · SPKI · SHA-256 | 7923F8E70F50B8C6DFFC5E73814B9D2D… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026061301 |
| 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 | ONE.COM A/S |
| Registered | 2025-02-02 |
| Expires | 2027-02-01 (99d) |
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 |
|---|---|
| xtron.dk | ONE.COM A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-25 00:25:24 | 3239ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-23 06:36:36 | 1834ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-13 21:27:27 | 1792ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 06:51:09 | 632ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 17:50:48 | 631ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-15 04:53:27 | 1157ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-29 02:32:39 | 520ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 17:40:22 | 567ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-24 03:38:49 | 3451ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-13 19:26:41 | 2508ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-20 23:46:12 | 867ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-16 09:03:17 | 943ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-29 12:15:00 | 976ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-23 02:21:05 | 2001ms | 2 NS 1 A 4 MX | ⚠️ Bogus |
| 2026-06-21 10:00:57 | 939ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 16:25:09 shown | 994ms | 2 NS 1 A 4 MX | 🔒 Secure |