c73.dk

📜 Historical scan 2026-06-27 15:25:29 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

c73.dk is a .dk domain served by 2 nameservers (eloise.ns.cloudflare.com, felipe.ns.cloudflare.com). It was registered on 5 February 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.8.121 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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 221ms

Nameserver	IP addresses	PTR	ASN / ISP
eloise.ns.cloudflare.com	108.162.194.208 162.159.38.208 172.64.34.208 2606:4700:50::a29f:26d0 2803:f800:50::6ca2:c2d0 2a06:98c1:50::ac40:22d0	— eloise.ns.cloudflare.com eloise.ns.cloudflare.com eloise.ns.cloudflare.com eloise.ns.cloudflare.com eloise.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
felipe.ns.cloudflare.com	108.162.195.116 162.159.44.116 172.64.35.116 2606:4700:58::a29f:2c74 2803:f800:50::6ca2:c374 2a06:98c1:50::ac40:2374	felipe.ns.cloudflare.com felipe.ns.cloudflare.com felipe.ns.cloudflare.com felipe.ns.cloudflare.com felipe.ns.cloudflare.com felipe.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 487ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.8.121	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.139.111	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.67.139.111
🔶 Autoconfig	104.21.8.121

🔷 AAAA Records (IPv6)#

2 records 237ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:8b6f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::6815:879	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 249ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.8.121,172.67.139.111 ech=AEX+DQBBZQAgACBshTbkGRxYf6K4OGYy9/LzbfsNJcK4d37UNUW/Rh+CFgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:8b6f,2606:4700:3031::6815:879

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-09 09:22:34

www	104.21.8.121 172.67.139.111 2606:4700:3030::ac43:8b6f 2606:4700:3031::6815:879 (AS13335) (address records, no CNAME)
www vs bare domain	Same network c73.dk: 104.21.8.121 172.67.139.111 2606:4700:3030::ac43:8b6f 2606:4700:3031::6815:879 (AS13335) www.c73.dk: 104.21.8.121 172.67.139.111 2606:4700:3030::ac43:8b6f 2606:4700:3031::6815:879 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔗 TLSA / DANE#

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

🔐 DNSSEC#

524ms

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

🏷️ SOA#

215ms

Field	Value
Serial	2405711282
Primary NS (MNAME)	eloise.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-10 00:24:32

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2020-02-05
Expires	2027-02-28 (134d)

📋 WHOIS#

⏱️ Lookup Timing#

221ms

487ms

263ms

AAAA

237ms

TXT

686ms

CAA

237ms

HTTPS

249ms

TLSA

173ms

SOA

215ms

MTA-STS

277ms

DNSSEC

524ms

SRV

465ms

Total

1780ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 09:22:34	1216ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-30 03:43:02	1573ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-28 01:29:14	645ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-27 01:27:23	610ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-25 01:02:21	9430ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-26 07:15:11	844ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-24 22:10:44	2080ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-31 03:19:16	8692ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-27 15:25:29 shown	1780ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-25 23:49:34	828ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-16 18:43:37	375ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-16 18:40:47	527ms	2 NS 2 A 0 MX	🔓 Insecure