3f-ungdom.dk

📜 Historical scan 2026-06-16 12:58:29 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

3f-ungdom.dk is a .dk domain served by 2 nameservers (jay.ns.cloudflare.com, uma.ns.cloudflare.com). It was registered on 5 January 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.71.6 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 61ms

Nameserver	IP addresses	PTR	ASN / ISP
jay.ns.cloudflare.com	—	—	—
uma.ns.cloudflare.com	—	—	—

🌍 A Records#

2 records 40ms

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

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 68ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:4706	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:8d42	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 49ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.71.6,172.67.141.66 ech=AEX+DQBBzAAgACCRSl2GarTD7edzme/SRSjBGfCZcUyEhedgk/e1csdNQwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:4706,2606:4700:3036::ac43:8d42

📝 TXT Records#

1 records 193ms

TXT Record
v=spf1 -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.3f-ungdom.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 2026-10-04 10:38:54

www	Address record (no CNAME)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

203ms

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

🏷️ SOA#

49ms

Field	Value
Serial	2406358099
Primary NS (MNAME)	jay.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-04 11:37:40

Field	Value
Registrar	Simply.com A/S
Registered	2006-01-05
Expires	2027-01-31 (106d)

📋 WHOIS#

⏱️ Lookup Timing#

61ms

40ms

68ms

AAAA

68ms

TXT

193ms

CAA

64ms

HTTPS

49ms

TLSA

97ms

SOA

49ms

MTA-STS

93ms

DNSSEC

203ms

SRV

0ms

Total

1000ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 10:38:54	404ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-24 09:26:29	604ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-23 20:46:24	567ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-20 16:06:30	1060ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-06 13:08:03	9505ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-01 14:21:02	1981ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-25 17:46:21	650ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-07 01:50:29	2721ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-23 12:46:05	896ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-18 18:02:49	827ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-16 12:58:29 shown	1000ms	2 NS 2 A 0 MX	🔓 Insecure