hulstrom.dk is a .dk domain served by 2 nameservers (ns1.onwelcom.dk, ns2.onwelcom.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx1.valeo.cloud, mx2.valeo.cloud. The zone is not DNSSEC-signed, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.onwelcom.dk | 185.51.79.241 | mail.onwelcom.dk | AS205984 Powernet Aps |
| ns2.onwelcom.dk | 185.51.79.251 | — | AS205984 Powernet Aps |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.51.79.130 | 86400s | web02.onwelcom.dk | AS205984 | — | — | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 86400s | mx1.valeo.cloud | 185.51.79.248 | mailfilter.powernet.dk | AS205984 Powernet Aps |
| 20 | 86400s | mx2.valeo.cloud | 185.51.79.23 | — | AS205984 Powernet Aps |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 185.51.79.130 |
| 🔶 Autoconfig | 185.51.79.130 |
| TXT Record |
|---|
| v=spf1 mx a ip4:185.51.79.235 ip4:185.51.79.241 ip4:195.190.31.0/24 include:_spf.google.com ~all |
| Policy | Record (hulstrom.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx a ip4:185.51.79.235 ip4:185.51.79.241 ip4:195.190.31.0/24 include:_spf.google.com ~all |
| Policy | Record (_dmarc.hulstrom.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:henrik@hulstrom.net; ruf=mailto:henrik@hulstrom.net; |
| www | 185.51.79.130 (AS205984) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 3/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2022091015 |
| Primary NS (MNAME) | ns1.onwelcom.dk |
| Responsible (RNAME) | hostmaster@hulstrom.dk |
| Refresh | 3600s |
| Retry | 600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-08-27 17:34:52 | 734ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-20 18:04:18 | 401ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-18 23:32:53 shown | 4337ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-17 14:05:05 | 269ms | 0 NS 0 A 0 MX | ❓ Unknown |