esperhave.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 3 March 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.42.40 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1.webexchange.nu, mx2.webexchange.nu. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 185.21.42.40 | 3600s | — | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscoverredirect.webexchange.nu → 212.237.249.80 |
| www CNAME | esperhave.dk (all on esperhave.dk) → 185.21.42.40 (AS48854) |
| 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 |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2021111701 |
| 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 | 2016-03-03 |
| 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 17:02:18 shown | 419ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-31 13:17:47 | 660ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-27 13:56:25 | 689ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-26 00:36:33 | 1469ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-22 16:35:48 | 818ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-20 16:34:55 | 1385ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 08:24:33 | 610ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 08:24:30 | 824ms | 2 NS 1 A 2 MX | 🔒 Secure |