korstgaard.dk DNS records

🖥️ Nameservers2 records 49ms

Nameserver	IP addresses	PTR	ASN / ISP
kim.ns.cloudflare.com	108.162.192.126 172.64.32.126 173.245.58.126 2606:4700:50::adf5:3a7e 2803:f800:50::6ca2:c07e 2a06:98c1:50::ac40:207e	kim.ns.cloudflare.com kim.ns.cloudflare.com kim.ns.cloudflare.com kim.ns.cloudflare.com kim.ns.cloudflare.com kim.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
todd.ns.cloudflare.com	108.162.193.146 172.64.33.146 173.245.59.146 2606:4700:58::adf5:3b92 2803:f800:50::6ca2:c192 2a06:98c1:50::ac40:2192	todd.ns.cloudflare.com todd.ns.cloudflare.com todd.ns.cloudflare.com todd.ns.cloudflare.com todd.ns.cloudflare.com todd.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
104.21.1.190	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.129.218	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 61ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:81da	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:1be	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 64ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.1.190,172.67.129.218 ech=AEX+DQBBawAgACBoUVKVjjLK5/bFmFpvfOPJOMaF34zKXqGRi3SL/8GpbgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:81da,2606:4700:3036::6815:1be

📝 TXT Records1 records 216ms

TXT Record
google-site-verification=jwltdPKFAV7SumRtKbFI_bBQuVsIJMgFP2aR-T_RXR4

✉️ 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)

🔐 DNSSEC119ms

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	2410906148
Primary NS (MNAME)	kim.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

49ms

A

32ms

MX

28ms

AAAA

61ms

TXT

216ms

CAA

56ms

HTTPS

64ms

TLSA

16031ms

SOA

0ms

MTA-STS

50ms

DNSSEC

119ms

SRV

8104ms

Total

32727ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 22:33:45	489ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-25 17:02:28	881ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-24 14:03:59	3573ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-04 04:34:55	32727ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-06 23:43:40	8895ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-27 03:41:57	740ms	2 NS 0 A 0 MX	🔓 Insecure	View
2026-06-26 08:35:01	705ms	2 NS 0 A 0 MX	🔓 Insecure	View