3ff.dk

📜 Historical scan 2026-10-15 18:02:49 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

3ff.dk is a .dk domain served by 2 nameservers (jay.ns.cloudflare.com, uma.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.9.190 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, publishes a 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
jay.ns.cloudflare.com	108.162.193.123 172.64.33.123 173.245.59.123 2606:4700:58::adf5:3b7b 2803:f800:50::6ca2:c17b 2a06:98c1:50::ac40:217b	jay.ns.cloudflare.com jay.ns.cloudflare.com jay.ns.cloudflare.com jay.ns.cloudflare.com jay.ns.cloudflare.com jay.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
uma.ns.cloudflare.com	108.162.192.146 172.64.32.146 173.245.58.146 2606:4700:50::adf5:3a92 2803:f800:50::6ca2:c092 2a06:98c1:50::ac40:2092	uma.ns.cloudflare.com uma.ns.cloudflare.com uma.ns.cloudflare.com uma.ns.cloudflare.com uma.ns.cloudflare.com uma.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 49ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.9.190	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.189.133	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 57ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:9be	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:bd85	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 42ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.9.190,172.67.189.133 ech=AEX+DQBBQQAgACARhLJM9qASB4fI9tI8HFssvb+3lTGqbJau9L/IbfsAKQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:9be,2606:4700:3036::ac43:bd85

📝 TXT Records#

1 records 169ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (3ff.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.3ff.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

📬 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 2026-10-16 19:42:13

www	104.21.9.190 172.67.189.133 2606:4700:3030::6815:9be 2606:4700:3036::ac43:bd85 (AS13335) (address records, no CNAME)
www vs bare domain	Same network 3ff.dk: 104.21.9.190 172.67.189.133 2606:4700:3030::6815:9be 2606:4700:3036::ac43:bd85 (AS13335) www.3ff.dk: 104.21.9.190 172.67.189.133 2606:4700:3030::6815:9be 2606:4700:3036::ac43:bd85 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.3ff.dk	JW122IfBWYKdLOhq_TUjxWRpQJwMTm8P9EpB6OHXzNc
TXT	_acme-challenge.3ff.dk	LgywnnyM0UWNcp_2NmxmriGkofgujUDzFcae6ZWn5sY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

59ms

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

🏷️ SOA#

34ms

Field	Value
Serial	2417502024
Primary NS (MNAME)	jay.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

34ms

49ms

35ms

AAAA

57ms

TXT

169ms

CAA

39ms

HTTPS

42ms

TLSA

53ms

SOA

34ms

MTA-STS

59ms

DNSSEC

59ms

SRV

63ms

Total

388ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 19:42:13	2358ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-15 18:02:49 shown	388ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-30 14:37:03	452ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-27 14:38:34	591ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-02 16:30:19	579ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-27 21:05:48	686ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-26 20:02:53	662ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-16 18:41:06	2878ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-29 17:02:02	3601ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-25 15:06:51	1856ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-16 12:48:18	567ms	2 NS 2 A 0 MX	🔓 Insecure