heidensleben.dk is a .dk domain served by 2 nameservers (bonnie.ns.cloudflare.com, kianchau.ns.cloudflare.com). It was registered on 4 May 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.116.232.206 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mx.simply.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 |
|---|---|---|---|---|---|---|---|
| 217.116.232.206 | 7200s | web6.gigahost.dk | AS47292 | Sentia Denmark A/S | 217.116.224.0/20 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 7200s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| TXT Record |
|---|
| v=spf1 a include:spf.simply.com ~all |
| Policy | Record (heidensleben.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a include:spf.simply.com ~all |
| Policy | Record (_dmarc.heidensleben.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject;rua=mailto:hh@heidensleben.dk;ruf=mailto:hh@heidensleben.dk;fo=1; |
| www CNAME | heidensleben.dk (all on heidensleben.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 2/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 4B949F05A63FED95FC94B3A83DD70167… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2417250459 |
| Primary NS (MNAME) | bonnie.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1999-05-04 |
| Expires | 2027-06-30 (252d) |
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 |
|---|---|
| syhh.dk | Punktum dk A/S (direct) |
| syhhmon.dk | dns.services ApS |
| talentloebet.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 11:02:24 shown | 445ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 21:15:58 | 676ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-09 19:23:46 | 821ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 15:09:53 | 864ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-24 19:39:45 | 879ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-15 08:34:59 | 866ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-06 14:30:17 | 1153ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-08 21:51:52 | 910ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 05:36:29 | 1832ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 05:24:40 | 813ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 06:00:00 | 669ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 11:04:54 | 969ms | 2 NS 1 A 1 MX | 🔒 Secure |