mcreutzberg.dk DNS records

🖥️ Nameservers2 records 79ms

Nameserver	IP addresses	PTR	ASN / ISP
crystal.ns.cloudflare.com	108.162.194.202 162.159.38.202 172.64.34.202 2606:4700:50::a29f:26ca 2803:f800:50::6ca2:c2ca 2a06:98c1:50::ac40:22ca	crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
yew.ns.cloudflare.com	108.162.195.80 162.159.44.80 172.64.35.80 2606:4700:58::a29f:2c50 2803:f800:50::6ca2:c350 2a06:98c1:50::ac40:2350	yew.ns.cloudflare.com yew.ns.cloudflare.com yew.ns.cloudflare.com yew.ns.cloudflare.com yew.ns.cloudflare.com yew.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 104ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.47.70	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.170.164	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	104.21.47.70
🔶 Autoconfig	172.67.170.164

🔷 AAAA Records (IPv6)2 records 93ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:2f46	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::ac43:aaa4	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 94ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.47.70,172.67.170.164 ech=AEX+DQBB3QAgACANZZD4/H2thbBLnTNJyLm3eCjbGOLeQewG9SHS5P4HDQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2f46,2606:4700:3031::ac43:aaa4

📝 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)

🔐 DNSSEC242ms

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	2413069651
Primary NS (MNAME)	crystal.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

79ms

A

104ms

MX

103ms

AAAA

93ms

TXT

430ms

CAA

98ms

HTTPS

94ms

TLSA

164ms

SOA

0ms

MTA-STS

133ms

DNSSEC

242ms

SRV

143ms

Total

4589ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 16:05:29	4589ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-20 09:39:32	8964ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-19 07:33:14	1398ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-29 23:56:43	795ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-24 06:15:55	824ms	2 NS 2 A 0 MX	❓ Unknown	View
2026-06-20 20:16:02	1140ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-18 20:58:27	4050ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-17 21:26:25	792ms	2 NS 2 A 0 MX	🔓 Insecure	View