kthx.dk DNS records

🖥️ Nameservers2 records 60ms

Nameserver	IP addresses	PTR	ASN / ISP
amy.ns.cloudflare.com	108.162.192.101 172.64.32.101 173.245.58.101 2606:4700:50::adf5:3a65 2803:f800:50::6ca2:c065 2a06:98c1:50::ac40:2065	amy.ns.cloudflare.com amy.ns.cloudflare.com amy.ns.cloudflare.com amy.ns.cloudflare.com amy.ns.cloudflare.com amy.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
pete.ns.cloudflare.com	108.162.193.136 172.64.33.136 173.245.59.136 2606:4700:58::adf5:3b88 2803:f800:50::6ca2:c188 2a06:98c1:50::ac40:2188	pete.ns.cloudflare.com pete.ns.cloudflare.com pete.ns.cloudflare.com pete.ns.cloudflare.com pete.ns.cloudflare.com pete.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.82.11	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.167.135	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	104.21.82.11
🔶 Autoconfig	104.21.82.11

🔷 AAAA Records (IPv6)2 records 40ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:520b	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:a787	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 54ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.82.11,172.67.167.135 ech=AEX+DQBB5wAgACBKC9LgE47IDtMgwi/5S/wQDb1stVYq6xxBs7MVqXYIZgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:520b,2606:4700:3034::ac43:a787

📝 TXT Records1 records 210ms

TXT Record
v=spf1 -all

✉️ SPF

Policy	Record (kthx.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC

Policy	Record (_dmarc.kthx.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

📬 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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.kthx.dk	nTWXXvDMVz0RPNvZObK8YqjwVbSzvBNTf4N_2I5G6sk

🔗 TLSA / DANE

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

🔐 DNSSEC68ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2412102220
Primary NS (MNAME)	amy.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

60ms

A

32ms

MX

38ms

AAAA

40ms

TXT

210ms

CAA

41ms

HTTPS

54ms

TLSA

63ms

SOA

0ms

MTA-STS

65ms

DNSSEC

68ms

SRV

77ms

Total

962ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-13 19:31:59	962ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-08-08 16:47:48	1031ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-08-01 05:24:08	861ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-07-16 10:25:45	912ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-06-26 08:46:56	592ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-06-20 15:45:49	458ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-06-18 07:07:15	901ms	2 NS 2 A 0 MX	🔒 Secure	View