semarkit.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 6 August 2007 (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. 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 |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | semarkit.net → 83.151.155.18 |
| 🔶 Autoconfig | semarkit.net → 83.151.155.18 |
| TXT Record |
|---|
| v=spf1 redirect=_spf.semarkit.net |
| Policy | Record (semarkit.dk) |
|---|---|
| redirect=_spf.semarkit.net | v=spf1 redirect=_spf.semarkit.net |
| Policy | Record (_dmarc.semarkit.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 | semarkit.net (all on semarkit.net) → 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| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.semarkit.dk | semarkit.net |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026091201 |
| 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 | WEBHOSTING A/S |
| Registered | 2007-08-06 |
| Expires | 2027-08-31 (318d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 13:53:44 | 1269ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 23:50:40 shown | 558ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 01:42:32 | 853ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-16 08:17:39 | 1159ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-09 06:16:05 | 2582ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 04:20:03 | 2235ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-25 12:51:28 | 827ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-14 00:24:03 | 17171ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-07 04:48:39 | 1300ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-21 18:28:46 | 18490ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-19 11:39:50 | 979ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-15 00:30:16 | 9111ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-09 01:10:10 | 16955ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-03 00:45:31 | 9743ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 03:14:31 | 846ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 07:04:38 | 782ms | 2 NS 1 A 1 MX | 🔒 Secure |