booketbord.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 4 August 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. 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 |
|---|---|---|---|---|---|---|---|
| 188.40.30.12 | 300s | dedi6371.your-server.de | AS24940 | — | — | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx1.onlinemail.io | 185.21.42.12 | mx1.onlinemail.io | AS48854 team.blue Denmark A/S |
| 20 | 300s | mx2.onlinemail.io | 46.36.208.16 | mx2.onlinemail.io | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover-mf.onlinemail.io → 185.21.40.62 |
| 🔶 Autoconfig | autoconfig-mf.onlinemail.io → 185.21.40.62 |
| TXT Record |
|---|
| google-site-verification=CpQ3N1cTB_O0wq5kApbOxi2BKQPSa0EqTt65LGywYsA |
| v=spf1 mx:wsy.dk a:host11.onlinehost.dk a:host22.onlinehost.dk ip4:188.40.30.12 a:smtp1.mail.wsy.dk include:spf.onlinemail.io -all |
| Policy | Record (booketbord.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx:wsy.dk a:host11.onlinehost.dk a:host22.onlinehost.dk ip4:188.40.30.12 a:smtp1.mail.wsy.dk include:spf.onlinemail.io -all |
| Policy | Record (_dmarc.booketbord.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=100; rua=mailto:dmarc.rua@wsy.dk |
| www CNAME | booketbord.dk (all on booketbord.dk) → 188.40.30.12 (AS24940) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u3473767.wl018.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u3473767.wl018.sendgrid.net | RSA · ~1024 bit below 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: 7/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.booketbord.dk | WxCRg-WSz2HZS4y5HIlXc2SENl1qWw8tZCS3oF7vqXY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026061704 |
| Primary NS (MNAME) | ns1.curanet.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2006-08-04 |
| Expires | 2027-08-31 (311d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-23 21:39:22 | 605ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-22 16:40:48 | 750ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-15 01:38:05 | 519ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-09 13:21:01 | 693ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-07 20:57:54 | 370ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-04 07:51:56 | 1375ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-03 07:47:56 | 500ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-24 04:56:50 | 599ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-03 15:39:20 | 516ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-16 19:20:33 | 2226ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-30 15:57:36 | 522ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-23 14:14:07 | 1171ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-23 05:37:05 | 1057ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-23 05:03:38 | 928ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 00:44:04 shown | 1070ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 15:55:01 | 535ms | 2 NS 1 A 2 MX | 🔒 Secure |