c.dk

📜 Historical scan 2026-08-25 23:45:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

c.dk is a .dk domain served by 4 nameservers (ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and 1 more). It was registered on 31 January 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 18.193.144.171 is hosted by Amazon.com, Inc. (AS16509) in Germany. Mail is handled by fpo9.mail.dk. The zone is DNSSEC-signed and validates, 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 29ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.eurodns.com	199.167.66.107 2610:1c8:b002::107	ns1.eurodns.com ns1.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns2.eurodns.com	104.37.178.107 2610:1c8:b001::107	ns2.eurodns.com ns2.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns3.eurodns.com	199.167.66.108 2610:1c8:b002::108	ns3.eurodns.com ns3.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns4.eurodns.com	104.37.178.108 2610:1c8:b001::108	ns4.eurodns.com ns4.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC

🌍 A Records#

3 records 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
18.193.144.171	600s	ec2-18-193-144-171.eu-central-1.compute.amazonaws.com	AS16509	Amazon.com, Inc.	18.192.0.0/13	🇩🇪 Germany	Frankfurt am Main
3.125.131.179	600s	ec2-3-125-131-179.eu-central-1.compute.amazonaws.com	AS16509	Amazon.com, Inc.	3.96.0.0/11	🇩🇪 Germany	Frankfurt am Main
18.192.246.145	600s	ec2-18-192-246-145.eu-central-1.compute.amazonaws.com	AS16509	Amazon.com, Inc.	18.192.0.0/13	🇩🇪 Germany	Frankfurt am Main

📧 MX Records#

1 records 27ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	fpo9.mail.dk	34.140.124.121	121.124.140.34.bc.googleusercontent.com	AS396982 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 99ms

TXT Record
v=spf1 include:mail.dk ~all

✉️ SPF#

Policy	Record (c.dk)
~all (soft fail)	v=spf1 include:mail.dk ~all

📨 DMARC#

Policy	Record (_dmarc.c.dk)
p=reject	v=DMARC1; p=reject; fo=1; rua=mailto:cv1zdpyr@ag.eu.dmarcian.com; ruf=mailto:cv1zdpyr@fr.eu.dmarcian.com;

📬 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 05:35:30

www	Exists, no address
www vs bare domain	www does not resolve c.dk: 18.192.246.145 18.193.144.171 3.125.131.179 (AS16509) www.c.dk: no address (all like this)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

126ms

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

Key type	Algorithm	Public key
KSK	ECDSA P-256/SHA-256	flcqpwGaIq7MInKWrKfBOsBJEoYR1NhbvR6o9+/d…
ZSK	ECDSA P-256/SHA-256	SvpCPMndCM0JLB1MNdLmBdB/8yFB9q4Owb45Rm6M…

🏷️ SOA#

14ms

Field	Value
Serial	2026011640
Primary NS (MNAME)	ns1.eurodns.com
Responsible (RNAME)	hostmaster@eurodns.com
Refresh	43200s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-08-25 23:45:46

Field	Value
Registrar	Eurodns S.A
Registered	1997-01-31
Expires	2027-03-31 (164d)

📋 WHOIS#

⏱️ Lookup Timing#

29ms

48ms

27ms

AAAA

19ms

TXT

99ms

CAA

14ms

HTTPS

28ms

TLSA

180ms

SOA

14ms

MTA-STS

17ms

DNSSEC

126ms

SRV

0ms

Total

2418ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 05:35:30	977ms	4 NS 3 A 1 MX	🔒 Secure
2026-10-12 02:32:46	1028ms	4 NS 3 A 1 MX	🔒 Secure
2026-09-25 20:09:15	723ms	4 NS 3 A 1 MX	🔒 Secure
2026-09-24 19:58:20	757ms	4 NS 3 A 1 MX	🔒 Secure
2026-09-23 19:34:43	817ms	4 NS 3 A 1 MX	🔒 Secure
2026-09-06 16:48:59	1059ms	4 NS 3 A 1 MX	🔒 Secure
2026-08-25 23:45:27 shown	2418ms	4 NS 3 A 1 MX	🔒 Secure
2026-08-19 06:48:21	5405ms	4 NS 3 A 1 MX	🔒 Secure
2026-08-17 13:40:41	3030ms	4 NS 3 A 1 MX	🔒 Secure
2026-07-30 20:50:26	1313ms	4 NS 3 A 1 MX	🔒 Secure
2026-07-29 09:34:41	1129ms	4 NS 3 A 1 MX	🔒 Secure
2026-07-12 07:11:42	927ms	4 NS 3 A 1 MX	🔒 Secure
2026-07-11 00:15:31	8832ms	4 NS 3 A 1 MX	🔒 Secure
2026-06-24 15:28:18	2849ms	4 NS 3 A 1 MX	🔒 Secure
2026-06-21 21:53:12	532ms	4 NS 3 A 1 MX	🔒 Secure
2026-06-16 18:50:22	586ms	4 NS 3 A 1 MX	🔒 Secure
2026-06-16 18:40:44	2837ms	4 NS 3 A 1 MX	🔒 Secure