semnet.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 3 September 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 78.31.252.90 is hosted by EWII Bredbaand A/S (AS204151) 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 |
|---|---|---|---|---|---|---|---|
| 78.31.252.90 | 3600s | ip1.semarkit.net | AS204151 | EWII Bredbaand A/S | 78.31.252.0/22 | 🇩🇰 Denmark | Ans |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.semark.dk | 83.151.155.21 | mail.semark.dk | AS31027 GlobalConnect A/S |
| TXT Record |
|---|
| v=spf1 redirect=_spf.semarkit.net |
| Policy | Record (semnet.dk) |
|---|---|
| redirect=_spf.semarkit.net | v=spf1 redirect=_spf.semarkit.net |
| Policy | Record (_dmarc.semnet.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; aspf=r; adkim=r; fo=1; pct=100; rua=mailto:postmaster@semarkit.net; ruf=mailto:postmaster@semarkit.net; |
| Flags | Tag | Value |
|---|---|---|
| 0 | iodef | mailto:info@semarkit.net |
| 0 | issue | letsencrypt.org |
| www CNAME | semnet.dk (all on semnet.dk) → 78.31.252.90 (AS204151) |
| 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 | 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 | 2020-09-03 |
| Expires | 2027-09-30 (348d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 22:16:37 | 2224ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 21:55:04 | 575ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-16 19:52:24 shown | 777ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-14 11:33:55 | 931ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-18 18:34:51 | 9098ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-14 16:05:31 | 4118ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-02 10:08:41 | 2259ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 21:15:27 | 630ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 17:53:56 | 788ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 08:39:12 | 837ms | 2 NS 1 A 1 MX | 🔒 Secure |