semark.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 19 February 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 83.151.155.18 is hosted by GlobalConnect A/S (AS31027) in Denmark. Mail is handled by mail.semark.dk, hem01.semark.dk. 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 |
|---|---|---|---|---|---|---|---|
| 83.151.155.18 | 3600s | — | AS31027 | GlobalConnect A/S | 83.151.128.0/18 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | mail.semark.dk | 83.151.155.21 | mail.semark.dk | AS31027 GlobalConnect A/S |
| 20 | 3600s | hem01.semark.dk | 83.151.155.18 | — | AS31027 GlobalConnect A/S |
| TXT Record |
|---|
| google-site-verification=0kcptuDnpUMhrEuEd-1rMwEOp_R8BLDY6bIaWz-Wndc |
| v=spf1 redirect=_spf.semarkit.net |
| Policy | Record (semark.dk) |
|---|---|
| redirect=_spf.semarkit.net | v=spf1 redirect=_spf.semarkit.net |
| Policy | Record (_dmarc.semark.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; |
| Check | Result |
|---|---|
| Status | ⚠️ Invalid |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✗ Missing / invalid |
| Policy ID | 20240401T000000Z |
| Policy MX | — |
| Status | Report address (rua) |
|---|---|
| ✓ Enabled | mailto:semark-d@tlsrpt.report-uri.com |
| Flags | Tag | Value |
|---|---|---|
| 0 | iodef | mailto:info@semark.dk |
| 0 | issue | letsencrypt.org |
| www CNAME | semark.dk (all on semark.dk) → 83.151.155.18 (AS31027) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 3/10 · 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 | 2026082902 |
| 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 | 1998-02-19 |
| Expires | 2027-03-31 (165d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-03 18:56:48 | 733ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-01 16:02:55 | 842ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 15:50:35 | 828ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 01:06:34 | 901ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-27 12:27:57 | 919ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-29 23:29:56 shown | 625ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-26 09:05:59 | 767ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-26 04:06:55 | 764ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-18 06:55:31 | 879ms | 2 NS 1 A 2 MX | 🔒 Secure |