onwelcom.dk is a .dk domain served by 2 nameservers (ns1.onwelcom.dk, ns2.onwelcom.dk). It was registered on 11 October 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.51.79.250 is hosted by Powernet Aps (AS205984) in Denmark. Mail is handled by mailfilter.onwelcom.dk, mx2.onwelcom.dk. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 185.51.79.250 | 86400s | web01.onwelcom.dk | AS205984 | Powernet Aps | 185.51.78.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 86400s | mailfilter.onwelcom.dk | 185.51.79.248 | mailfilter.powernet.dk | AS205984 Powernet Aps |
| 20 | 86400s | mx2.onwelcom.dk | 185.51.79.248 | mailfilter.powernet.dk | AS205984 Powernet Aps |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 185.51.79.242 |
| 🔶 Autoconfig | 185.51.79.250 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | exchange.onwelcom.dk |
| _sipfederationtls._tcp | 0 | 0 | 5061 | sip.onwelcom.dk |
| TXT Record |
|---|
| CEOV1610183003 |
| globalsign-domain-verification=vQbij8MlDQtXrvlN5W_XmGRwDbCY1Mkp4aX6epJiqI |
| v=spf1 a ip4:185.51.78.0/24 ip4:185.51.79.0/24 ~all |
| Policy | Record (onwelcom.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a ip4:185.51.78.0/24 ip4:185.51.79.0/24 ~all |
| www | 185.51.79.250 (AS205984) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 1/10 · 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 | 2022082923 |
| Primary NS (MNAME) | ns1.onwelcom.dk |
| Responsible (RNAME) | hostmaster@onwelcom.dk |
| Refresh | 3600s |
| Retry | 600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2015-10-11 |
| Expires | 2027-10-31 (376d) |
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 |
|---|---|---|---|
| 2026-09-24 20:12:43 | 9419ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-20 21:58:25 shown | 2919ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-22 15:25:15 | 2350ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-20 19:48:19 | 976ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 03:00:19 | 761ms | 2 NS 1 A 2 MX | 🔓 Insecure |