jsommer.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 1 December 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by .. The zone is DNSSEC-signed and validates, has no 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| TXT Record |
|---|
| v=spf1 ip4:80.196.145.158 ip4:95.209.144.48 ip4:62.107.129.163 ip4:80.251.201.52 -all |
| Policy | Record (jsommer.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:80.196.145.158 ip4:95.209.144.48 ip4:62.107.129.163 ip4:80.251.201.52 -all |
| www | 2.105.117.25 (AS3292) (address records, no CNAME) |
| www vs bare domain | Only www resolves (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026092001 |
| 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 | 2008-12-01 |
| Expires | 2026-12-31 (70d) |
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 |
|---|---|---|---|
| 2026-10-21 09:36:02 shown | 602ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-19 23:01:57 | 312ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-22 05:52:06 | 748ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-09-04 19:34:57 | 703ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-07-04 16:20:52 | 3402ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-06-18 04:41:32 | 819ms | 2 NS 0 A 4 MX | ⚠️ Bogus |