net-books.dk is a .dk domain served by 3 nameservers (ns1.e-studio.dk, ns2.e-studio.dk, ns3.e-studio.dk). 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 195.242.130.70 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by mx4.spamfri.dk, mx2.spamfri.dk and 2 more. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 195.242.130.70 | 14400s | web7.e-studio.dk | AS62121 | Christian Ebsen ApS | 195.242.130.0/23 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 195.242.130.70 |
| 🔶 Autoconfig | 195.242.130.70 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | cpanelemaildiscovery.cpanel.net |
| TXT Record |
|---|
| v=spf1 ip4:195.242.130.70 include:_spf.e-studio.dk -all |
| Policy | Record (net-books.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:195.242.130.70 include:_spf.e-studio.dk -all |
| Policy | Record (_dmarc.net-books.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| 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.
DNS lookups: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.net-books.dk | d0V3_KpJQY4Nbca01QFDhvGDG6ohLG88hfjjlBs2YC4 |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.spamfri.dk | DANE-EE · SPKI · SHA-256 | 884451547A03D0AC2F628D943839BAA6… |
| SMTP _25._tcp.mx2.spamfri.dk | DANE-EE · SPKI · SHA-256 | 6598C93F79B95376BB8099E9AC862167… |
| SMTP _25._tcp.mx3.spamfri.dk | DANE-EE · SPKI · SHA-256 | BBFB0694919290E5BC9D6E2C6F47D846… |
| SMTP _25._tcp.mx4.spamfri.dk | DANE-EE · SPKI · SHA-256 | 4EE743A99328AEF5142706CA5FD3AD61… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026101412 |
| Primary NS (MNAME) | ns1.e-studio.dk |
| Responsible (RNAME) | hostmaster@mailrelay.e-studio.dk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| 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 shown | 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 | 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 |