businesssupport.dk is a .dk domain served by 4 nameservers (ns1.dnscluster.dk, ns2.dnscluster.dk, ns3.dnscluster.dk and 1 more). It was registered on 2 May 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 213.184.84.12 is hosted by PerfGrid (AS59795) in The Netherlands. Mail is handled by businesssupport-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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.dnscluster.dk | — | — | — |
| ns2.dnscluster.dk | — | — | — |
| ns3.dnscluster.dk | — | — | — |
| ns4.dnscluster.dk | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 213.184.84.12 | — | — | AS59795 | PerfGrid | 213.184.84.0/23 | 🇳🇱 The Netherlands | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a09:3a00:4012::1 | — | — | AS59795 | PerfGrid | 2a09:3a00:4000:0:0:0:0:0/40 | 🇳🇱 The Netherlands | — |
| TXT Record |
|---|
| google-site-verification=Fzn4qjZO43wmxx8eaYxDY0MtDCAlCCH5y2a0AyeJ_lA |
| M8crbbDJdtipqey7b74kSLcEs2uFfF6G |
| MS=ms42387732 |
| v=spf1 +a +mx +include:spf-record.net include:spf.protection.outlook.com -all |
| Policy | Record (businesssupport.dk) |
|---|---|
| -all (hard fail) | v=spf1 +a +mx +include:spf-record.net include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.businesssupport.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:dmarc_reports@businesssupport.dk |
| www | 213.184.84.12 2a09:3a00:4012::1 (AS59795) (address records, no CNAME) |
| www vs bare domain | Same network businesssupport.dk: 213.184.84.12 2a09:3a00:4012::1 (AS59795) www.businesssupport.dk: 213.184.84.12 2a09:3a00:4012::1 (AS59795) |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~2048 bit |
| selector1 | selector1-businesssupport-dk._domainkey.businesssupportdk.w-v1.dkim.mail.microsoft | 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: 5/10 · 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 | 2026052101 |
| Primary NS (MNAME) | ns1.dnscluster.dk |
| Responsible (RNAME) | hostmaster@businesssupport.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2018-05-02 |
| Expires | 2027-05-31 (220d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-24 17:53:36 | 2649ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 08:15:46 | 2666ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 17:50:25 shown | 970ms | 4 NS 1 A 1 MX | 🔒 Secure |