jtb.dk DNS records

🖥️ Nameservers2 records 65ms

Nameserver	IP addresses	PTR	ASN / ISP
barbara.ns.cloudflare.com	108.162.192.248 172.64.32.248 173.245.58.248 2606:4700:50::adf5:3af8 2803:f800:50::6ca2:c0f8 2a06:98c1:50::ac40:20f8	barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
dan.ns.cloudflare.com	108.162.193.108 172.64.33.108 173.245.59.108 2606:4700:58::adf5:3b6c 2803:f800:50::6ca2:c16c 2a06:98c1:50::ac40:216c	dan.ns.cloudflare.com dan.ns.cloudflare.com dan.ns.cloudflare.com dan.ns.cloudflare.com dan.ns.cloudflare.com dan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 55ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.57.41	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.189.30	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 45ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:bd1e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:3929	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 76ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.57.41,172.67.189.30 ech=AEX+DQBB4AAgACB/XSdQLgSrXD9KDjIg5elHMiou2QGferUsgFlm8DtsFgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:bd1e,2606:4700:3034::6815:3929

📝 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)

🔐 DNSSEC97ms

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

🏷️ SOA0ms

Field	Value
Serial	2411828044
Primary NS (MNAME)	barbara.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

65ms

A

55ms

MX

64ms

AAAA

45ms

TXT

204ms

CAA

69ms

HTTPS

76ms

TLSA

52ms

SOA

0ms

MTA-STS

95ms

DNSSEC

97ms

SRV

156ms

Total

842ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-11 01:35:44	842ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-09 23:32:38	8650ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-18 18:15:56	820ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-14 06:15:26	1021ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-19 14:10:10	837ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-18 03:01:07	1007ms	2 NS 2 A 0 MX	🔓 Insecure	View