ffu.dk

📜 Historical scan 2026-06-17 09:24:58 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ffu.dk is a .dk domain served by 2 nameservers (diva.ns.cloudflare.com, harvey.ns.cloudflare.com). It was registered on 17 December 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.64.234 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 34ms

Nameserver	IP addresses	PTR	ASN / ISP
diva.ns.cloudflare.com	—	—	—
harvey.ns.cloudflare.com	—	—	—

🌍 A Records#

2 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.64.234	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.137.179	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 45ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:40ea	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::ac43:89b3	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 34ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.64.234,172.67.137.179 ech=AEX+DQBBBwAgACCqfmcfnIuoKJ5IlEf/fctMxRpLGzhWDr4T3BFQFMHreQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:40ea,2606:4700:3031::ac43:89b3

📝 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 2026-10-10 02:19:21

www	104.21.64.234 172.67.137.179 2606:4700:3033::6815:40ea 2606:4700:3037::ac43:89b3 (AS13335) (address records, no CNAME)
www vs bare domain	Same network ffu.dk: 104.21.64.234 172.67.137.179 2606:4700:3033::6815:40ea 2606:4700:3037::ac43:89b3 (AS13335) www.ffu.dk: 104.21.64.234 172.67.137.179 2606:4700:3033::6815:40ea 2606:4700:3037::ac43:89b3 (AS13335)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

119ms

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

🏷️ SOA#

38ms

Field	Value
Serial	2405845481
Primary NS (MNAME)	diva.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 16:33:43

Field	Value
Registrar	Obsidian Digital A/S
Registered	2020-12-17
Expires	2026-12-31 (72d)

📋 WHOIS#

⏱️ Lookup Timing#

34ms

36ms

45ms

AAAA

45ms

TXT

104ms

CAA

33ms

HTTPS

34ms

TLSA

61ms

SOA

38ms

MTA-STS

46ms

DNSSEC

119ms

SRV

0ms

Total

604ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 07:03:48	500ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-22 07:17:09	1072ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-07 01:16:19	1037ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-02 13:41:07	9510ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-31 12:07:53	2000ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-08 22:58:19	1743ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-24 08:14:41	2409ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-23 08:46:00	1172ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 09:24:58 shown	604ms	2 NS 2 A 0 MX	🔓 Insecure