castleco.dk DNS records

🖥️ Nameservers4 records 62ms

Nameserver	IP addresses	PTR	ASN / ISP
ns-1249.awsdns-28.org	205.251.196.225 2600:9000:5304:e100::1	ns-1249.awsdns-28.org —	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-1788.awsdns-31.co.uk	205.251.198.252 2600:9000:5306:fc00::1	ns-1788.awsdns-31.co.uk ns-1788.awsdns-31.co.uk	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-23.awsdns-02.com	205.251.192.23 2600:9000:5300:1700::1	ns-23.awsdns-02.com ns-23.awsdns-02.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-563.awsdns-06.net	205.251.194.51 2600:9000:5302:3300::1	ns-563.awsdns-06.net ns-563.awsdns-06.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

🌍 A Records

🌍

No A records found

📧 MX Records2 records 57ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.protonmail.ch	176.119.200.128 185.205.70.128 185.70.42.128	mail.protonmail.ch mail.protonmail.ch mail.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG
20	300s	mailsec.protonmail.ch	176.119.200.129 185.205.70.129 185.70.42.129	mailsec.protonmail.ch mailsec.protonmail.ch mailsec.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 24238ms

TXT Record
1password-site-verification=HLTQMFLVAJHU7KO4Z2UKOLEPQU
protonmail-verification=2078c0e2e8897754366f545f93403e1e48d3f6c7
v=spf1 include:_spf.protonmail.ch mx ~all

✉️ SPF

Policy	Record (castleco.dk)
~all (soft fail)	v=spf1 include:_spf.protonmail.ch mx ~all

📨 DMARC

Policy	Record (_dmarc.castleco.dk)
p=none (monitor only)	v=DMARC1; p=none

📬 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 / DANE4 records 77ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…

🔐 DNSSEC150ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA56ms

Field	Value
Serial	1
Primary NS (MNAME)	ns-23.awsdns-02.com
Responsible (RNAME)	awsdns-hostmaster@amazon.com
Refresh	7200s
Retry	900s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

62ms

A

73ms

MX

57ms

AAAA

67ms

TXT

24238ms

CAA

58ms

HTTPS

61ms

TLSA

77ms

SOA

56ms

MTA-STS

65ms

DNSSEC

150ms

SRV

142ms

Total

60284ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-06 23:53:31	60284ms	4 NS 0 A 2 MX	🔓 Insecure	View
2026-06-27 08:09:50	843ms	4 NS 0 A 2 MX	🔓 Insecure	View
2026-06-23 15:25:03	953ms	4 NS 0 A 2 MX	🔓 Insecure	View
2026-06-20 19:12:01	1575ms	4 NS 0 A 2 MX	🔓 Insecure	View
2026-06-16 19:46:16	630ms	4 NS 0 A 2 MX	🔓 Insecure	View