assendrup.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 6 January 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.199 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx.spamfilter.io. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 185.21.40.199 | 3600s | linux14.curanet.dk | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| 🔶 Autoconfig | 185.21.40.199 |
| TXT Record |
|---|
| MS=ms52584312 |
| v=spf1 include:spf.jlhosting.dk include:spf.protection.outlook.com -all |
| Policy | Record (assendrup.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.jlhosting.dk include:spf.protection.outlook.com -all |
| www | 185.21.40.199 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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: 5/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.spamfilter.io | DANE-EE · SPKI · SHA-256 | 9A25F05F2E322DABDCC9B7A06AB47A2D… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2023062801 |
| Primary NS (MNAME) | ns1.curanet.dk.assendrup.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 | 1999-01-06 |
| Expires | 2027-03-31 (165d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 18:50:03 | 582ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 22:03:34 | 438ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 12:55:46 | 649ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-18 13:33:14 | 542ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-06 20:25:47 | 779ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 14:50:06 | 858ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 20:00:19 | 578ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 02:00:09 | 658ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 09:25:36 | 597ms | 2 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-19 23:55:35 shown | 767ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 13:45:08 | 2725ms | 2 NS 1 A 1 MX | 🔒 Secure |