henet.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 5 December 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail01.srv.tunenet.dk. The zone is not DNSSEC-signed, 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail01.srv.tunenet.dk | 185.125.83.230 2a06:b740:1:1::230:1 |
mail01.srv.tunenet.dk mail01.srv.tunenet.dk |
AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S |
| TXT Record |
|---|
| v=spf1 a:mail.krupl.net mx -all |
| Policy | Record (henet.dk) |
|---|---|
| -all (hard fail) | v=spf1 a:mail.krupl.net mx -all |
| Policy | Record (_dmarc.henet.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:peter@krupl.net; ruf=mailto:peter@krupl.net |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves henet.dk: no address www.henet.dk: no address |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| dkim | — | 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: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026101200 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2000-12-05 |
| Expires | 2028-05-31 (591d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 00:56:19 shown | 1481ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-10-04 11:43:10 | 434ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-30 11:37:33 | 840ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-30 05:42:08 | 788ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-18 22:31:52 | 637ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-03 07:32:36 | 999ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-23 01:57:34 | 1007ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-20 10:03:59 | 763ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-17 11:21:56 | 589ms | 3 NS 0 A 1 MX | 🔓 Insecure |