altan.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 8 December 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 213.184.85.16 is hosted by PerfGrid (AS59795) in The Netherlands. Mail is handled by altan-dk.mail.protection.outlook.com. 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 |
|---|---|---|---|---|---|---|---|
| 213.184.85.16 | 300s | nlcp07.hosting4real.net | AS59795 | PerfGrid | 213.184.84.0/23 | 🇳🇱 The Netherlands | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.40 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| _gzchcmiw9w3kq8zfzmdsz5w55sytlgm |
| _vrr6a86a5xag3jgu1g866agxad2it9c |
| brevo-code:83de97778a6927a9395fd4d4d2e18a86 |
| ca3-b28a226f8f0e49089283620b6fb9389f |
| klaviyo-site-verification=T78n3W |
| p03BIHXPCecxaEGAhIbqHslYuQ+qk8amMCnKo0xn2qwuCadyjTIfn6csvVYxQ7Oped8FHOMNpQ04yI8bzuZDYA== |
| v=spf1 include:spf.protection.outlook.com include:spf-eu.letsignit.com include:sendinblue.com ip4:13.81.11.134 ip4:185.9.6.189 ip4:13.53.76.169 ip4:80.208.27.154 -all |
| Policy | Record (altan.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:spf-eu.letsignit.com include:sendinblue.com ip4:13.81.11.134 ip4:185.9.6.189 ip4:13.53.76.169 ip4:80.208.27.154 -all |
| Policy | Record (_dmarc.altan.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:kw4mtjma@ag.eu.dmarcian.com; ruf=mailto:kw4mtjma@fr.eu.dmarcian.com; fo=1; |
| www | 213.184.85.16 (AS59795) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-altan-dk._domainkey.altandk.onmicrosoft.com | RSA · ~2048 bit |
| selector2 | selector2-altan-dk._domainkey.altandk.onmicrosoft.com | RSA · ~1024 bit below 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: 7/10 · 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 | 2026032001 |
| Primary NS (MNAME) | ns1.curanet.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1999-12-08 |
| Expires | 2027-12-31 (440d) |
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).
| Domain | Registrar |
|---|---|
| altandk.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 04:33:57 shown | 848ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 04:01:12 | 1770ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 11:45:21 | 1128ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 12:44:27 | 1991ms | 2 NS 1 A 1 MX | 🔒 Secure |