industriensuddannelser.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 2 December 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 3.126.204.255 is hosted by Amazon.com, Inc. (AS16509) in Germany. Mail is handled by dk.mx1.mailanyone.net, dk.mx2.mx25.net and 2 more. The zone is DNSSEC-signed and validates, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 3.126.204.255 | 600s | ec2-3-126-204-255.eu-central-1.compute.amazonaws.com | AS16509 | Amazon.com, Inc. | 3.96.0.0/11 | 🇩🇪 Germany | Frankfurt am Main |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=B629A8B5ABFDB4697D6E936D695FDD3D75831727 |
| MS=ms56448821 |
| v=spf1 a ip4:81.7.158.165 ip4:81.7.158.179 include:spf.emailsignatures365.com include:spf.protection.outlook.com -all |
| vpe=69189e92 |
| Policy | Record (industriensuddannelser.dk) |
|---|---|
| -all (hard fail) | v=spf1 a ip4:81.7.158.165 ip4:81.7.158.179 include:spf.emailsignatures365.com include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.industriensuddannelser.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:nemits@iu.dk; ruf=mailto:nemits@iu.dk; rf=afrf; pct=100; ri=86400 |
| www | 3.126.204.255 (AS16509) (address records, no CNAME) |
| www vs bare domain | Same network industriensuddannelser.dk: 3.126.204.255 (AS16509) www.industriensuddannelser.dk: 3.126.204.255 (AS16509) |
| 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 |
DNS lookups: 3/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.dk.mx1.mailanyone.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx1.mailanyone.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx2.mx25.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx2.mx25.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx3.mailanyone.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx3.mailanyone.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx4.mx25.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx4.mx25.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2025012001 |
| Primary NS (MNAME) | ns.dandomain.dk |
| Responsible (RNAME) | hostmaster@dandomain.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | DANDOMAIN A/S |
| Registered | 2002-12-02 |
| Expires | 2031-12-31 (1895d) |
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 |
|---|---|---|---|
| 2026-06-25 16:37:39 | 2538ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-21 07:56:22 shown | 753ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 11:46:53 | 1586ms | 2 NS 1 A 4 MX | 🔒 Secure |