kstr.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 26 February 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.33.164.91 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by .. The zone is DNSSEC-signed and validates, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 77.33.164.91 | 1800s | 77.33.164.91.dhcp.fibianet.dk | AS44869 | FIBIA P/S | 77.33.0.0/16 | 🇩🇰 Denmark | Dianalund |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (kstr.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.kstr.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | letsencrypt.org |
| www CNAME | kstr.dk (all on kstr.dk) → 77.33.164.91 (AS44869) |
| 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 |
DNS lookups: 0/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| HTTPS _443._tcp.kstr.dk | DANE-EE · Full cert · SHA-256 | D03F57F1324658E89290DD78D56B6F38… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026062501 |
| 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 | 2014-02-26 |
| Expires | 2027-02-28 (125d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-26 02:25:06 | 640ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-04 15:53:03 | 659ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 00:44:22 | 464ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-25 21:45:19 | 627ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-19 05:27:47 | 4619ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-27 00:48:45 | 599ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-01 06:29:42 | 653ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-27 12:50:08 shown | 552ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 22:53:38 | 1535ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 15:17:33 | 1604ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-19 22:02:11 | 697ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 11:59:31 | 524ms | 2 NS 1 A 0 MX | 🔒 Secure |