softwarearkitektur.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 6 September 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 109.198.153.123 is hosted by DanskNet A/S (AS35158) in Denmark. Mail is handled by odin.knaldgas.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 our latest 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 |
|---|---|---|---|---|---|---|---|
| 109.198.153.123 | 600s | odin.knaldgas.dk | AS35158 | DanskNet A/S | 109.198.128.0/19 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | odin.knaldgas.dk | 109.198.153.123 | odin.knaldgas.dk | AS35158 DanskNet A/S |
| TXT Record |
|---|
| google-site-verification=Zfi46R78wIOq94mWjM_eQR08KwwButnPaXZ3xv3FZhE |
| v=spf1 mx ip6:2a00:7660:a99:0:7285:c2ff:fefc:3dc8 -all |
| Policy | Record (softwarearkitektur.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx ip6:2a00:7660:a99:0:7285:c2ff:fefc:3dc8 -all |
| Policy | Record (_dmarc.softwarearkitektur.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:postmaster@knaldgas.dk |
| Flags | Tag | Value |
|---|---|---|
| 1 | issue | letsencrypt.org |
| www CNAME | softwarearkitektur.dk (all on softwarearkitektur.dk) |
| www vs bare domain | Same network softwarearkitektur.dk: 109.198.153.123 (AS35158) www.softwarearkitektur.dk: 109.198.153.123 (AS35158) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| — | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 1/10 · 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 | 2026101001 |
| 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 | Domænehajen ApS |
| Registered | 2010-09-06 |
| Expires | 2035-09-30 (3270d) |
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 |
|---|---|---|---|
| 2026-10-11 10:24:42 shown | 799ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-09 04:07:28 | 479ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 04:32:32 | 452ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-10 13:51:53 | 938ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-10 15:46:02 | 3277ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-15 23:30:43 | 630ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-11 15:59:00 | 1084ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-19 23:57:26 | 643ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-19 23:47:34 | 3574ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 12:09:39 | 771ms | 2 NS 1 A 1 MX | 🔒 Secure |