hbook.dk is a .dk domain served by 4 nameservers (ns-1130.awsdns-13.org, ns-2013.awsdns-59.co.uk, ns-447.awsdns-55.com and 1 more). It was registered on 28 July 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 3.64.39.135 is hosted by Amazon.com, Inc. (AS16509) in Germany. Mail is handled by box.cswarning.dk. 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 |
|---|---|---|---|---|---|---|---|
| 3.64.39.135 | — | ec2-3-64-39-135.eu-central-1.compute.amazonaws.com | AS16509 | Amazon.com, Inc. | 3.64.0.0/12 | 🇩🇪 Germany | Frankfurt am Main |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | box.cswarning.dk | 3.79.140.78 | box.cswarning.dk | AS16509 Amazon.com, Inc. |
| TXT Record |
|---|
| google-site-verification=XFmBH-SjzlZdLUgax4ITkFB0bipaiO95usT8l0pMTfo |
| v=spf1 mx include:amazonses.com -all |
| Policy | Record (hbook.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx include:amazonses.com -all |
| Policy | Record (_dmarc.hbook.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; |
| Check | Result |
|---|---|
| Status | 🔒 Enforce |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✓ Valid |
| Mode | enforce |
| Policy ID | IgMgcNBKzmT5fVldPuA7 |
| max_age | 604800s |
| Policy MX | box.cswarning.dk |
| www | 3.64.39.135 (AS16509) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 2/10 · policy: -all
No problems found| 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 | 1 |
| Primary NS (MNAME) | ns-1130.awsdns-13.org |
| Responsible (RNAME) | awsdns-hostmaster@amazon.com |
| Refresh | 7200s |
| Retry | 900s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Domeneshop AS |
| Registered | 2016-07-28 |
| Expires | 2027-07-31 (285d) |
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 |
|---|---|
| kartoflerbornholm.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-27 14:31:09 | 4855ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-19 09:42:09 | 1016ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 11:08:13 | 1209ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 11:05:27 | 5848ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 11:05:19 | 1283ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 11:05:09 shown | 1331ms | 4 NS 1 A 1 MX | 🔓 Insecure |