bookbordibyen.dk is a .dk domain served by 3 nameservers (ns05.sac-it.dk, ns06.sac-it.dk, ns06us.sac-it.dk). It was registered on 26 April 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.116.232.219 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mx1.gigahost.dk, mx2.gigahost.dk and 1 more. The zone is not DNSSEC-signed, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns05.sac-it.dk | 85.235.255.134 | — | AS3308 Norlys Telco A/S |
| ns06.sac-it.dk | 128.76.60.134 | — | AS3292 TDC Holding A/S |
| ns06us.sac-it.dk | 72.29.91.87 | 72-29-91-87.static.hostdime.com | AS33182 HostDime.com, Inc. |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 217.116.232.219 | 3600s | web19.gigahost.dk | AS47292 | Sentia Denmark A/S | 217.116.224.0/20 | 🇩🇰 Denmark | — |
| 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 | bookbordibyen.dk → 217.116.232.219 |
| 🔶 Autoconfig | bookbordibyen.dk → 217.116.232.219 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | autodiscover.gigahost.dk |
| www CNAME | bookbordibyen.dk (all on bookbordibyen.dk) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.bookbordibyen.dk | bookbordibyen.dk |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2021022404 |
| Primary NS (MNAME) | ns05.sac-it.dk |
| Responsible (RNAME) | hostmaster@bookbordibyen.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2016-04-26 |
| Expires | 2028-07-31 (649d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 03:35:50 shown | 501ms | 3 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-29 15:42:51 | 1538ms | 3 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-25 22:08:03 | 711ms | 3 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-02 05:55:38 | 717ms | 3 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-27 15:38:11 | 9828ms | 3 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-22 19:28:23 | 8874ms | 3 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-19 18:56:27 | 2498ms | 3 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-16 15:55:23 | 2945ms | 3 NS 1 A 3 MX | 🔓 Insecure |