cidk.dk

📜 Historical scan 2026-07-07 19:38:30 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cidk.dk is a .dk domain served by 2 nameservers (ns1.messagingengine.com, ns2.messagingengine.com). It was registered on 17 February 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 103.168.172.37 is hosted by Fastmail Pty Ltd (AS151847) in United States. Mail is handled by us1-smtp.messagingengine.com, us2-smtp.messagingengine.com. 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#

2 records 314ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.messagingengine.com	162.159.24.178	ns1.messagingengine.com	AS13335 Cloudflare, Inc.
ns2.messagingengine.com	162.159.25.191	ns2.messagingengine.com	AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 2274ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
103.168.172.37	3598s	www.messagingengine.com	AS151847	Fastmail Pty Ltd	103.168.172.0/24	🇺🇸 United States	Philadelphia
103.168.172.52	3598s	www.messagingengine.com	AS151847	Fastmail Pty Ltd	103.168.172.0/24	🇺🇸 United States	Philadelphia

📧 MX Records#

2 records 286ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	us1-smtp.messagingengine.com	103.168.172.216 103.168.172.217 103.168.172.218 103.168.172.219 103.168.172.220 103.168.172.221 103.168.172.222 103.168.172.223	phl-mx-01.messagingengine.com phl-mx-02.messagingengine.com phl-mx-03.messagingengine.com phl-mx-04.messagingengine.com phl-mx-05.messagingengine.com phl-mx-06.messagingengine.com phl-mx-07.messagingengine.com phl-mx-08.messagingengine.com	AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd
20	3600s	us2-smtp.messagingengine.com	202.12.124.216 202.12.124.217 202.12.124.218 202.12.124.219	stl-mx-01.messagingengine.com stl-mx-02.messagingengine.com stl-mx-03.messagingengine.com stl-mx-04.messagingengine.com	AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	103.168.172.52
🔶 Autoconfig	103.168.172.52

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 550ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	1	443	autodiscover.fastmail.com
_imaps._tcp	0	1	993	imap.fastmail.com

📝 TXT Records#

1 records 1441ms

TXT Record
v=spf1 include:spf.messagingengine.com ?all

✉️ SPF#

Policy	Record (cidk.dk)
?all (neutral)	v=spf1 include:spf.messagingengine.com ?all

📨 DMARC#

Policy	Record (_dmarc.cidk.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 2026-10-13 03:37:44

www	103.168.172.37 103.168.172.52 (AS151847) (address records, no CNAME)
www vs bare domain	Same network cidk.dk: 103.168.172.37 103.168.172.52 (AS151847) www.cidk.dk: 103.168.172.37 103.168.172.52 (AS151847)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ?all

warn "?all" is neutral: it gives receivers no guidance, much like having no SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

461ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2026070700
Primary NS (MNAME)	ns1.messagingengine.com
Responsible (RNAME)	postmaster@messagingengine.com
Refresh	86358s
Retry	600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-13 03:57:05

Field	Value
Registrar	Simply.com A/S
Registered	2024-02-17
Expires	2027-02-16 (122d)

📋 WHOIS#

⏱️ Lookup Timing#

314ms

2274ms

286ms

AAAA

227ms

TXT

1441ms

CAA

251ms

HTTPS

246ms

TLSA

1018ms

SOA

0ms

MTA-STS

340ms

DNSSEC

461ms

SRV

550ms

Total

8762ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 03:37:44	1882ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-08 18:40:01	2810ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-05 17:08:19	2478ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-30 16:41:45	2137ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-17 10:14:56	2722ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-07 13:49:20	2127ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-05 08:59:29	2421ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-26 12:58:23	3197ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-26 01:28:00	2342ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-09 11:23:46	3230ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-07 19:38:30 shown	8762ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-04 20:52:33	4879ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-27 07:43:18	1771ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-26 02:09:23	4090ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-20 04:28:47	1250ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-16 20:50:45	3378ms	2 NS 2 A 2 MX	🔓 Insecure