c25.dk

📜 Historical scan 2026-06-19 22:01:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

c25.dk is a .dk domain served by 2 nameservers (dns-a.duelhost.dk, dns-b.duelhost.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 138.201.61.68 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mail.c25.dk. 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 955ms

Nameserver	IP addresses	PTR	ASN / ISP
dns-a.duelhost.dk	138.201.61.68	cde3.duelhost.dk	AS24940 Hetzner Online GmbH
dns-b.duelhost.dk	195.201.247.10	dns-b.duelhost.dk	AS24940 Hetzner Online GmbH

🌍 A Records#

1 records 962ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
138.201.61.68	3599s	cde3.duelhost.dk	AS24940	Hetzner Online GmbH	138.201.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records#

1 records 957ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.c25.dk	138.201.61.68	cde3.duelhost.dk	AS24940 Hetzner Online GmbH

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 1261ms

TXT Record
v=spf1 a mx include:relay.mailchannels.net -all

✉️ SPF#

Policy	Record (c25.dk)
-all (hard fail)	v=spf1 a mx include:relay.mailchannels.net -all

📨 DMARC#

Policy	Record (_dmarc.c25.dk)
p=none (monitor only)	v=DMARC1; p=none; sp=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 21:46:36

www	193.46.69.54 (AS62121) (address records, no CNAME)
www vs bare domain	Same network c25.dk: 193.46.69.54 (AS62121) www.c25.dk: 193.46.69.54 (AS62121)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

997ms

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

🏷️ SOA#

162ms

Field	Value
Serial	2026051003
Primary NS (MNAME)	dns-a.duelhost.dk
Responsible (RNAME)	hostmaster@c25.dk
Refresh	3600s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

955ms

962ms

957ms

AAAA

948ms

TXT

1261ms

CAA

954ms

HTTPS

189ms

TLSA

416ms

SOA

162ms

MTA-STS

127ms

DNSSEC

997ms

SRV

271ms

Total

1850ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-27 18:49:02	522ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-23 12:43:50	540ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-22 07:35:04	1958ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-15 06:55:25	1056ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-22 22:54:46	908ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-20 00:23:40	906ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-19 22:01:27 shown	1850ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-16 18:41:01	599ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-16 18:40:24	2688ms	2 NS 1 A 1 MX	🔓 Insecure