365book.dk is a .dk domain served by 5 nameservers (ns1.gigahost.dk, ns2.gigahost.dk, ns3.gigahost.dk and 2 more). It was registered on 25 August 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.103.48.73 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by mx1.gigahost.dk, mx2.gigahost.dk and 1 more. The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 5.103.48.73 | 3600s | 5.103.48.73.dhcp.fibianet.dk | AS44869 | FIBIA P/S | 5.103.0.0/16 | 🇩🇰 Denmark | Vejle Øst |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx1.gigahost.dk | 46.183.139.11 | mx1.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 3600s | mx2.gigahost.dk | 46.183.139.12 | mx2.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 3600s | mx3.gigahost.dk | 46.183.139.13 | mx3.gigahost.dk | AS47292 Sentia Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 365book.dk → 5.103.48.73 |
| 🔶 Autoconfig | 365book.dk → 5.103.48.73 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | autodiscover.gigahost.dk |
| TXT Record |
|---|
| spf2.0/pra |
| v=spf1 mx include:spf.gigahost.dk -all |
| Policy | Record (365book.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx include:spf.gigahost.dk -all |
| Policy | Record (_dmarc.365book.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; |
| www CNAME | 365book.dk (all on 365book.dk) → 5.103.48.73 (AS44869) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 2/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.365book.dk | 365book.dk |
| 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 | 2026082701 |
| Primary NS (MNAME) | ns1.gigahost.dk |
| Responsible (RNAME) | hostmaster@365book.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | GIGAHOST ApS |
| Registered | 2014-08-25 |
| Expires | 2027-08-31 (318d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 13:21:12 | 1083ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-08 02:24:16 | 3783ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-01 23:11:27 | 1225ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-24 21:28:00 | 845ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-24 03:41:41 | 800ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-21 08:59:20 | 1978ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-14 08:09:31 | 982ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-09 09:32:06 | 698ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-27 16:34:36 shown | 774ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-21 00:00:39 | 2383ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-13 13:23:33 | 951ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-07 20:36:24 | 1173ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-23 08:28:12 | 1269ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-16 17:23:59 | 1021ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-11 08:24:46 | 1138ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-03 19:21:18 | 4709ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-25 18:51:05 | 1171ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-18 10:02:21 | 1345ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-16 12:59:59 | 1540ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-16 12:58:10 | 5416ms | 5 NS 1 A 3 MX | 🔓 Insecure |