castleco.dk

📜 Historical scan 2026-06-23 15:25:03 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

castleco.dk is a .dk domain served by 4 nameservers (ns-1249.awsdns-28.org, ns-1788.awsdns-31.co.uk, ns-23.awsdns-02.com and 1 more). It was registered on 27 March 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records 61ms

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 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 Records#

2 records 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	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	600s	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 Records#

3 records 245ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 11:35:14

www	NXDOMAIN
www vs bare domain	Neither resolves castleco.dk: no address www.castleco.dk: no address
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records 51ms

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

🔐 DNSSEC#

83ms

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

🏷️ SOA#

42ms

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#

WHOIS fetched 2026-10-14 00:20:31

Field	Value
Registrar	ONE.COM A/S
Registered	2021-03-27
Expires	2027-03-31 (162d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
castleandersen.dk	ONE.COM A/S

📋 WHOIS#

⏱️ Lookup Timing#

61ms

37ms

46ms

AAAA

76ms

TXT

245ms

CAA

54ms

HTTPS

42ms

TLSA

51ms

SOA

42ms

MTA-STS

44ms

DNSSEC

83ms

SRV

129ms

Total

953ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 11:35:14	3167ms	4 NS 0 A 2 MX	🔓 Insecure
2026-10-07 21:48:52	2973ms	4 NS 0 A 2 MX	🔓 Insecure
2026-09-30 13:30:33	2908ms	4 NS 0 A 2 MX	🔓 Insecure
2026-07-06 23:53:31	60284ms	4 NS 0 A 2 MX	🔓 Insecure
2026-06-27 08:09:50	843ms	4 NS 0 A 2 MX	🔓 Insecure
2026-06-23 15:25:03 shown	953ms	4 NS 0 A 2 MX	🔓 Insecure
2026-06-20 19:12:01	1575ms	4 NS 0 A 2 MX	🔓 Insecure
2026-06-16 19:46:16	630ms	4 NS 0 A 2 MX	🔓 Insecure