duffspin.dk DNS records

🖥️ Nameservers2 records 43ms

Nameserver	IP addresses	PTR	ASN / ISP
marvin.ns.cloudflare.com	108.162.195.251 162.159.44.251 172.64.35.251 2606:4700:58::a29f:2cfb 2803:f800:50::6ca2:c3fb 2a06:98c1:50::ac40:23fb	marvin.ns.cloudflare.com marvin.ns.cloudflare.com marvin.ns.cloudflare.com marvin.ns.cloudflare.com marvin.ns.cloudflare.com marvin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
robin.ns.cloudflare.com	108.162.192.218 172.64.32.218 173.245.58.218 2606:4700:50::adf5:3ada 2803:f800:50::6ca2:c0da 2a06:98c1:50::ac40:20da	robin.ns.cloudflare.com robin.ns.cloudflare.com robin.ns.cloudflare.com robin.ns.cloudflare.com robin.ns.cloudflare.com robin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.42.203	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.210.15	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 37ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:2acb	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3030::ac43:d20f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 42ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.42.203,172.67.210.15 ech=AEX+DQBBYQAgACCiXPj/HekqKfXm+fk8uhhqX5SewTv4S7jrJSS/ZkhefgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:2acb,2606:4700:3030::ac43:d20f

📝 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)

🔐 DNSSEC81ms

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	2410080273
Primary NS (MNAME)	marvin.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

43ms

A

45ms

MX

57ms

AAAA

37ms

TXT

181ms

CAA

37ms

HTTPS

42ms

TLSA

60ms

SOA

0ms

MTA-STS

84ms

DNSSEC

81ms

SRV

74ms

Total

1122ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 13:27:16	1122ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-26 19:43:42	2484ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-22 02:12:40	9780ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-17 23:20:25	880ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-23 05:08:36	972ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-22 06:31:31	1169ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 11:31:13	612ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-17 04:55:39	402ms	2 NS 2 A 0 MX	🔓 Insecure	View