sfn.dk

📜 Historical scan 2026-10-01 18:14:56 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sfn.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 24 October 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.47.247.18 is hosted by One.com A/S (AS51468). Mail is handled by mail4.surftown.dk. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. 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 35ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.47.247.18	600s	one.com.webforward.g1i.one	AS51468	One.com A/S	195.47.247.0/24	—	—

📧 MX Records#

1 records 48ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	mail4.surftown.dk	—	—	—

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 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 2026-10-07 19:42:54

www	195.47.247.18 (AS51468) (address records, no CNAME)
www vs bare domain	Same network sfn.dk: 195.47.247.18 (AS51468) www.sfn.dk: 195.47.247.18 (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

112ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

48ms

Field	Value
Serial	2026100107
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-02 18:31:37

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2005-10-24
Expires	2026-10-31 (12d)

📋 WHOIS#

⏱️ Lookup Timing#

35ms

34ms

48ms

AAAA

44ms

TXT

155ms

CAA

53ms

HTTPS

52ms

TLSA

57ms

SOA

48ms

MTA-STS

52ms

DNSSEC

112ms

SRV

53ms

Total

643ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 19:42:54	584ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-02 18:17:30	601ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 18:14:56 shown	643ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 18:03:33	497ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-21 03:26:55	741ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-02 13:36:03	24566ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 18:38:42	1204ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 07:43:31	715ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 13:56:08	2012ms	2 NS 1 A 1 MX	🔒 Secure