3fi.dk

📜 Historical scan 2026-09-10 02:56:20 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

3fi.dk is a .dk domain served by 2 nameservers (lisa.ns.cloudflare.com, max.ns.cloudflare.com). It was registered on 23 September 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.39.147 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 38ms

Nameserver	IP addresses	PTR	ASN / ISP
lisa.ns.cloudflare.com	108.162.192.131 172.64.32.131 173.245.58.131 2606:4700:50::adf5:3a83 2803:f800:50::6ca2:c083 2a06:98c1:50::ac40:2083	lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
max.ns.cloudflare.com	108.162.193.132 172.64.33.132 173.245.59.132 2606:4700:58::adf5:3b84 2803:f800:50::6ca2:c184 2a06:98c1:50::ac40:2184	max.ns.cloudflare.com max.ns.cloudflare.com max.ns.cloudflare.com max.ns.cloudflare.com max.ns.cloudflare.com max.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 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.39.147	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.170.208	300s	—	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
2606:4700:3033::ac43:aad0	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:2793	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 52ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.39.147,172.67.170.208 ech=AEX+DQBBEgAgACAmuNVNbB7odZQO++/GqvqTDBGBu5EMikC78aITpfqCeAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:aad0,2606:4700:3035::6815:2793

📝 TXT Records#

3 records 168ms

TXT Record
8103blxzwtvpg7c0l76t8k44n0cqpr35
MS=ms46068723
v=spf1 include:flat.dedicated.mysmtp.com -all

✉️ SPF#

Policy	Record (3fi.dk)
-all (hard fail)	v=spf1 include:flat.dedicated.mysmtp.com -all

📨 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 2026-10-15 14:23:41

www	104.21.39.147 172.67.170.208 2606:4700:3033::ac43:aad0 2606:4700:3035::6815:2793 (AS13335) (address records, no CNAME)
www vs bare domain	Same network 3fi.dk: 104.21.39.147 172.67.170.208 2606:4700:3033::ac43:aad0 2606:4700:3035::6815:2793 (AS13335) www.3fi.dk: 104.21.39.147 172.67.170.208 2606:4700:3033::ac43:aad0 2606:4700:3035::6815:2793 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.3fi.dk	BSSC4D0rRc7V6y_PqSeJQ3RVDmH2l1G82aVRCPfKG3o
TXT	_acme-challenge.3fi.dk	Do2lHuBUOHGOgRbJGzRJ3UnaKt85O6vFsOsC3iuYL1g

🔗 TLSA / DANE#

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

🔐 DNSSEC#

109ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2414335894
Primary NS (MNAME)	lisa.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-13 07:53:25

Field	Value
Registrar	Simply.com A/S
Registered	2004-09-23
Expires	2027-09-30 (348d)

🔗 Same registrant#

17 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
3-f.dk	Simply.com A/S
3f.dk	Simply.com A/S
3fa.dk	Simply.com A/S
3findustri.dk	Simply.com A/S
3ftransport.dk	CURANET A/S
3fudvtst.dk	Simply.com A/S
danskemodel.dk	Simply.com A/S
faellesforbundet.dk	Simply.com A/S
fagforeningstjek.dk	Simply.com A/S
landsklubber.dk	Simply.com A/S
langsoehus.dk	Simply.com A/S
lærlinge.dk	Simply.com A/S
overenskomster.dk	Simply.com A/S
r-u-s.dk	Simply.com A/S
tib.dk	Simply.com A/S
trefu.dk	Simply.com A/S
vaerdigreform.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

38ms

33ms

AAAA

45ms

TXT

168ms

CAA

34ms

HTTPS

52ms

TLSA

76ms

SOA

0ms

MTA-STS

66ms

DNSSEC

109ms

SRV

62ms

Total

683ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 16:41:04	594ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-24 03:00:07	1131ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-23 21:05:27	643ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-20 20:17:09	668ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-18 20:48:45	1234ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-10 02:56:20 shown	683ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-04 02:28:10	924ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-01 19:37:57	968ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-12 06:37:01	8844ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-09 22:48:17	877ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-26 10:05:07	8794ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-25 07:32:41	883ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-20 18:28:42	714ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-16 13:14:31	534ms	2 NS 2 A 0 MX	🔓 Insecure