bookadvise.dk is a .dk domain served by 3 nameservers (ns4.hostonline.dk, ns5.hostonline.dk, ns6.hostonline.dk). It was registered on 6 April 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.195.185.216 is hosted by GlobalConnect A/S (AS31027) in Denmark. Mail is handled by he.hostonline.dk, mx-backup.hostonline.dk. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 217.195.185.216 | 60s | webhotel08.hostonline.dk | AS31027 | GlobalConnect A/S | 217.195.176.0/20 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | he.hostonline.dk | 217.195.185.200 2a02:188:164::100 |
he.hostonline.dk he.hostonline.dk |
AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S |
| 30 | 43200s | mx-backup.hostonline.dk | 217.195.185.201 2a02:188:6004:15::12 |
mx-backup.hostonline.dk spamfront2.hostonline.dk |
AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscoverredirect.hostonline.dk.bookadvise.dk |
| TXT Record |
|---|
| v=spf1 a mx include:_spf.hostonline.dk -all |
| Policy | Record (bookadvise.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx include:_spf.hostonline.dk -all |
| Policy | Record (_dmarc.bookadvise.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; aspf=r; |
| www CNAME | bookadvise.dk (all on bookadvise.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 10 iterations · 8-byte salt · opt-out RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 6/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081602 |
| Primary NS (MNAME) | ns4.hostonline.dk |
| Responsible (RNAME) | hostmaster@hostonline.dk |
| Refresh | 3600s |
| Retry | 600s |
| Expire | 86400s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2006-04-06 |
| Expires | 2028-04-30 (560d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 06:35:06 | 1893ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-10 22:12:46 | 878ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-05 18:47:39 | 631ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 18:34:46 | 2990ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-29 18:28:45 | 490ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-25 19:58:12 | 757ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-20 15:34:14 | 657ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-17 20:37:10 | 510ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-11 13:35:08 | 794ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-31 16:24:21 | 448ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-27 04:02:26 | 843ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-27 00:54:06 | 581ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-21 14:50:53 | 9277ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-17 07:09:20 shown | 9891ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-11 18:31:09 | 1649ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-08 11:18:10 | 2718ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-02 07:55:05 | 18396ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-27 18:08:11 | 831ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-22 09:07:58 | 2707ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-17 21:38:45 | 801ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-12 21:28:45 | 966ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-08 16:03:54 | 9045ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-03 11:27:48 | 506ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-28 17:19:07 | 953ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-22 11:20:45 | 2548ms | 3 NS 1 A 2 MX | 🔒 Secure |