entr.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 4 December 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.47.247.18 is hosted by One.com A/S (AS51468). Mail is handled by entr-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 |
|---|---|---|---|---|---|---|---|
| 195.47.247.18 | — | one.com.webforward.g1i.one | AS51468 | One.com A/S | 195.47.247.0/24 | — | — |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (entr.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| www | 195.47.247.18 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-entr-dk._domainkey.entras.onmicrosoft.com | RSA · ~1024 bit below 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 | 2026061501 |
| 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 | Punktum dk A/S (direct) |
| Registered | 2003-12-04 |
| Expires | 2026-12-31 (70d) |
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 |
|---|---|
| sallinggenbyg.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-17 10:33:52 | 1309ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 15:05:47 | 1046ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-21 08:20:08 | 973ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 11:30:25 | 1812ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-16 14:22:53 | 4945ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-16 22:40:02 | 2038ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-01 13:33:07 | 907ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-30 05:07:44 | 809ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 18:58:55 | 1919ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 06:39:38 | 734ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 07:45:06 shown | 1525ms | 2 NS 1 A 1 MX | 🔒 Secure |