just-book.dk DNS records

🖥️ Nameservers2 records 12ms

Nameserver	IP addresses	PTR	ASN / ISP
sara.ns.cloudflare.com	108.162.192.144 172.64.32.144 173.245.58.144 2606:4700:50::adf5:3a90 2803:f800:50::6ca2:c090 2a06:98c1:50::ac40:2090	sara.ns.cloudflare.com sara.ns.cloudflare.com sara.ns.cloudflare.com sara.ns.cloudflare.com sara.ns.cloudflare.com sara.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sevki.ns.cloudflare.com	108.162.195.164 162.159.44.164 172.64.35.164 2606:4700:58::a29f:2ca4 2803:f800:50::6ca2:c3a4 2a06:98c1:50::ac40:23a4	sevki.ns.cloudflare.com sevki.ns.cloudflare.com sevki.ns.cloudflare.com sevki.ns.cloudflare.com sevki.ns.cloudflare.com sevki.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 11ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
172.67.171.46	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—
104.21.39.184	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 8ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:27b8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000::/42	—	—
2606:4700:3034::ac43:ab2e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000::/42	—	—

🔐 HTTPS Records1 records 19ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.39.184,172.67.171.46 ech=AEX+DQBBsAAgACBqFWqCbSa0hIapmEZ8EvTtQ4JO7ghjATd5mnRb9fv2QAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:ab2e,2606:4700:3035::6815:27b8

📝 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

🔗 TLSA / DANE

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

🔐 DNSSEC121ms

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

🏷️ SOA7ms

Field	Value
Serial	2413561047
Primary NS (MNAME)	sara.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

12ms

A

11ms

MX

7ms

AAAA

8ms

TXT

73ms

CAA

12ms

HTTPS

19ms

TLSA

22ms

SOA

7ms

MTA-STS

18ms

DNSSEC

121ms

SRV

0ms

Total

1201ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-02 21:59:05	1201ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-31 17:38:42	1405ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-27 00:08:29	740ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-07 06:30:39	945ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-03 19:10:20	776ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-24 04:42:32	712ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-18 07:32:56	812ms	2 NS 2 A 0 MX	🔓 Insecure	View