claus-jacobsen.dk DNS records

🖥️ Nameservers2 records 184ms

Nameserver	IP addresses	PTR	ASN / ISP
mimi.ns.cloudflare.com	108.162.192.203 172.64.32.203 173.245.58.203 2606:4700:50::adf5:3acb 2803:f800:50::6ca2:c0cb 2a06:98c1:50::ac40:20cb	mimi.ns.cloudflare.com mimi.ns.cloudflare.com mimi.ns.cloudflare.com mimi.ns.cloudflare.com mimi.ns.cloudflare.com mimi.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sam.ns.cloudflare.com	108.162.193.141 172.64.33.141 173.245.59.141 2606:4700:58::adf5:3b8d 2803:f800:50::6ca2:c18d 2a06:98c1:50::ac40:218d	sam.ns.cloudflare.com sam.ns.cloudflare.com sam.ns.cloudflare.com sam.ns.cloudflare.com sam.ns.cloudflare.com sam.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 183ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.25.112	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.134.18	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 215ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::ac43:8612	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:1970	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 183ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.25.112,172.67.134.18 ech=AEX+DQBBnwAgACBrHy01pKg8snMZLixiuFdldMD/KS4DMqJPDoLxR4VHFQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:8612,2606:4700:3037::6815:1970

📝 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)

🔐 DNSSEC479ms

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	2411619337
Primary NS (MNAME)	mimi.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

184ms

A

183ms

MX

238ms

AAAA

215ms

TXT

590ms

CAA

144ms

HTTPS

183ms

TLSA

241ms

SOA

0ms

MTA-STS

281ms

DNSSEC

479ms

SRV

252ms

Total

3239ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-10 08:52:50	3239ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-06 14:11:23	981ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-25 06:10:32	1487ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-23 18:40:15	1170ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-16 21:11:10	1190ms	2 NS 2 A 0 MX	🔓 Insecure	View