booking-system.dk

📜 Historical scan 2026-06-20 02:44:25 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

booking-system.dk is a .dk domain served by 3 nameservers (helium.ns.hetzner.de, hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.226.144.126 is hosted by Netnoerden ApS (AS216275) in Denmark. Mail is handled by mail.booking-system.dk. The zone is not DNSSEC-signed, has no 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.

🖥️ Nameservers#

3 records 73ms

Nameserver	IP addresses	PTR	ASN / ISP
helium.ns.hetzner.de	193.47.99.5 2001:67c:192c::add:5	helium.ns.hetzner.de helium.ns.hetzner.de	AS12337 noris network AG AS12337 noris network AG
hydrogen.ns.hetzner.com	213.133.100.98 2a01:4f8:0:1::add:1098	hydrogen.ns.hetzner.com hydrogen.ns.hetzner.com	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
oxygen.ns.hetzner.com	2a01:4f8:0:1::add:2992 88.198.229.192	oxygen.ns.hetzner.com oxygen.ns.hetzner.com	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

🌍 A Records#

1 records 90ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
91.226.144.126	1800s	mail.kaltoft.nu	AS216275	Netnoerden ApS	91.226.144.0/23	🇩🇰 Denmark	Frederiksberg

📧 MX Records#

1 records 70ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	60s	mail.booking-system.dk	91.226.144.126	mail.kaltoft.nu	AS216275 Netnoerden ApS

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 20:51:46

www	NXDOMAIN
www vs bare domain	www does not resolve booking-system.dk: 91.226.144.126 (AS216275) www.booking-system.dk: no address (all like this)
Wildcard	No

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

225ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

102ms

Field	Value
Serial	2026052805
Primary NS (MNAME)	hydrogen.ns.hetzner.com
Responsible (RNAME)	dns@hetzner.com
Refresh	86400s
Retry	10800s
Expire	3600000s
Minimum (neg-cache TTL)	3600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

73ms

90ms

70ms

AAAA

108ms

TXT

443ms

CAA

79ms

HTTPS

84ms

TLSA

134ms

SOA

102ms

MTA-STS

118ms

DNSSEC

225ms

SRV

334ms

Total

1027ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 20:51:46	1335ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-30 06:50:35	683ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-27 07:32:39	698ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-24 06:48:36	1876ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-05 08:33:41	11530ms	3 NS 1 A 1 MX	🔓 Insecure
2026-07-28 21:36:33	2745ms	3 NS 1 A 1 MX	🔓 Insecure
2026-07-25 15:55:50	2600ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-26 09:50:24	1662ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-21 03:08:28	564ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-20 02:44:25 shown	1027ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-16 15:55:27	643ms	3 NS 1 A 1 MX	🔓 Insecure