f4j.dk

📜 Historical scan 2026-10-03 03:42:29 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

f4j.dk is a .dk domain served by 2 nameservers (linda.ns.cloudflare.com, mario.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.93.10 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 30ms

Nameserver	IP addresses	PTR	ASN / ISP
linda.ns.cloudflare.com	108.162.192.250 172.64.32.250 173.245.58.250 2606:4700:50::adf5:3afa 2803:f800:50::6ca2:c0fa 2a06:98c1:50::ac40:20fa	linda.ns.cloudflare.com linda.ns.cloudflare.com linda.ns.cloudflare.com linda.ns.cloudflare.com linda.ns.cloudflare.com linda.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
mario.ns.cloudflare.com	108.162.193.203 172.64.33.203 173.245.59.203 2606:4700:58::adf5:3bcb 2803:f800:50::6ca2:c1cb 2a06:98c1:50::ac40:21cb	mario.ns.cloudflare.com mario.ns.cloudflare.com mario.ns.cloudflare.com mario.ns.cloudflare.com mario.ns.cloudflare.com mario.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 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.93.10	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.201.223	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 32ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::ac43:c9df	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:5d0a	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=104.21.93.10,172.67.201.223 ech=AEX+DQBByAAgACAMYi2HVDlK7qBmySuE9D63pKGEkKMO1hmuddJ2q4kjdwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:c9df,2606:4700:3037::6815:5d0a

📝 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 10:56:09

www	104.21.93.10 172.67.201.223 2606:4700:3034::ac43:c9df 2606:4700:3037::6815:5d0a (AS13335) (address records, no CNAME)
www vs bare domain	Same network f4j.dk: 104.21.93.10 172.67.201.223 2606:4700:3034::ac43:c9df 2606:4700:3037::6815:5d0a (AS13335) www.f4j.dk: 104.21.93.10 172.67.201.223 2606:4700:3034::ac43:c9df 2606:4700:3037::6815:5d0a (AS13335)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

66ms

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

🏷️ SOA#

43ms

Field	Value
Serial	2415636326
Primary NS (MNAME)	linda.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#

30ms

32ms

33ms

AAAA

32ms

TXT

152ms

CAA

31ms

HTTPS

42ms

TLSA

46ms

SOA

43ms

MTA-STS

60ms

DNSSEC

66ms

SRV

60ms

Total

367ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 10:56:09	1554ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-03 03:42:29 shown	367ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-30 00:51:38	517ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-24 01:07:54	569ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-27 04:58:40	533ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-19 06:45:27	2754ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-17 03:45:32	877ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-26 14:42:37	880ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-03 02:02:09	1256ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-24 21:22:22	570ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-24 06:51:00	1173ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-23 15:37:14	644ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-23 02:24:13	1178ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-22 19:26:34	651ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-21 13:35:08	1193ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 09:10:27	1100ms	2 NS 2 A 0 MX	🔓 Insecure