oz4tds.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 10 July 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.semark.dk. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 83.151.155.18 | — | — | AS31027 | — | — | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mail.semark.dk | 83.151.155.18 | — | AS31027 GlobalConnect A/S |
| TXT Record |
|---|
| v=spf1 redirect=_spf.semarkit.net |
| Policy | Record (oz4tds.dk) |
|---|---|
| redirect=_spf.semarkit.net | v=spf1 redirect=_spf.semarkit.net |
| Policy | Record (_dmarc.oz4tds.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; aspf=r; adkim=r; fo=1; pct=100; rua=mailto:semark-d@dmarc.report-uri.com; ruf=mailto:semark-d@dmarc.report-uri.com; |
| Flags | Tag | Value |
|---|---|---|
| 0 | iodef | mailto:info@semarkit.net |
| 0 | issue | letsencrypt.org |
| www CNAME | oz4tds.dk (all on oz4tds.dk) → 83.151.155.18 (AS31027) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 3/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026011901 |
| 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 | 2010-07-10 |
| Expires | 2027-07-31 (281d) |
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 |
|---|---|---|---|
| 2026-10-20 22:48:33 | 2873ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-25 13:02:18 | 678ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 11:53:31 | 9654ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-19 14:01:25 | 6789ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-22 12:50:04 | 6911ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-22 07:11:05 | 1166ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 16:56:47 | 2444ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-18 08:15:15 shown | 1023ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-18 07:55:43 | 2682ms | 2 NS 1 A 1 MX | 🔓 Insecure |