net-books.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 15 February 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 213.32.247.249 is hosted by Hiper A/S (AS203953) in Denmark. Mail is handled by .. 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 |
|---|---|---|---|---|---|---|---|
| 213.32.247.249 | 23973s | xd520f7f9.customers.hiper-net.dk | AS203953 | Hiper A/S | 213.32.240.0/21 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | net-books.dk → 213.32.247.249 |
| 🔶 Autoconfig | net-books.dk → 213.32.247.249 |
| www CNAME | net-books.dk (all on net-books.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | 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.
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.net-books.dk | net-books.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026061401 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | dns.services ApS |
| Registered | 2012-02-15 |
| Expires | 2027-02-28 (132d) |
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 |
|---|---|
| datahus.dk | Simply.com A/S |
| geometer.dk | dns.services ApS |
| qa-tech.dk | dns.services ApS |
| regeltjek.dk | dns.services ApS |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 23:08:52 | 3131ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-09-30 12:44:44 | 511ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-14 21:58:07 | 1089ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-31 16:31:14 | 1537ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-15 00:01:30 | 1543ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-15 15:11:39 | 655ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-01 10:07:31 | 606ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 05:01:56 | 1280ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 03:19:43 shown | 549ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-19 21:59:16 | 613ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 22:15:44 | 786ms | 2 NS 1 A 0 MX | 🔒 Secure |