cb27.dk DNS records

🖥️ Nameservers2 records 123ms

Nameserver	IP addresses	PTR	ASN / ISP
ara.ns.cloudflare.com	108.162.192.67 172.64.32.67 173.245.58.67 2606:4700:50::adf5:3a43 2803:f800:50::6ca2:c043 2a06:98c1:50::ac40:2043	ara.ns.cloudflare.com ara.ns.cloudflare.com ara.ns.cloudflare.com ara.ns.cloudflare.com ara.ns.cloudflare.com ara.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
derek.ns.cloudflare.com	108.162.193.154 172.64.33.154 173.245.59.154 2606:4700:58::adf5:3b9a 2803:f800:50::6ca2:c19a 2a06:98c1:50::ac40:219a	derek.ns.cloudflare.com derek.ns.cloudflare.com derek.ns.cloudflare.com derek.ns.cloudflare.com derek.ns.cloudflare.com derek.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 101ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.66.197	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.164.29	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 120ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3036::ac43:a41d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:42c5	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 104ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.66.197,172.67.164.29 ech=AEX+DQBBtAAgACCVndCuUaQeSrJqvIAeiPrwHpJH4XPiGd0GuAxLQRx1JgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::ac43:a41d,2606:4700:3037::6815:42c5

📝 TXT Records1 records 273ms

TXT Record
v=spf1 -all

✉️ SPF

Policy	Record (cb27.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC

Policy	Record (_dmarc.cb27.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.cb27.dk	d2he5PZkVA-fcIvbZOrlOdugAdYQ-8pxWfPQPgi_a4Y
TXT	_acme-challenge.cb27.dk	tQs49Yym-uBFu9vmom6J9XRv-zppU027BpfI49Lw6Uc

🔗 TLSA / DANE

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

🔐 DNSSEC164ms

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

🏷️ SOA0ms

Field	Value
Serial	2414705536
Primary NS (MNAME)	ara.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

123ms

A

101ms

MX

144ms

AAAA

120ms

TXT

273ms

CAA

105ms

HTTPS

104ms

TLSA

389ms

SOA

0ms

MTA-STS

106ms

DNSSEC

164ms

SRV

146ms

Total

1915ms