sarfu.dk

📜 Historical scan 2026-06-24 22:01:41 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sarfu.dk is a .dk domain served by 7 nameservers (ns1.first-ns.de, ns1.hefu.dk, ns2.hefu.dk and 4 more). It was registered on 18 June 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.251.205.35 is hosted by Hi3G Access AB (AS44034) in Denmark. Mail is handled by mail1.hefu.dk, mail2.hefu.dk and 2 more. The zone is not DNSSEC-signed, 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#

7 records 63ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.first-ns.de	213.239.242.238 2a01:4f8:0:a101::a:1	ns1.first-ns.de ns1.first-ns.de	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
ns1.hefu.dk	80.251.205.35	80.251.205.35.bredband.3.dk	AS44034 Hi3G Access AB
ns2.hefu.dk	65.21.158.48	saga.hefu.dk	AS24940 Hetzner Online GmbH
ns3.hefu.dk	188.34.167.39	hermod.hefu.dk	AS24940 Hetzner Online GmbH
ns4.hefu.dk	188.245.64.138	fenris.hefu.dk	AS24940 Hetzner Online GmbH
robotns2.second-ns.de	213.133.100.103 2a01:4f8:0:1::5ddc:2	robotns2.second-ns.de robotns2.second-ns.de	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
robotns3.second-ns.com	193.47.99.3 2001:67c:192c::add:a3	robotns3.second-ns.com robotns3.second-ns.com	AS12337 noris network AG AS12337 noris network AG

🌍 A Records#

1 records 56ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
80.251.205.35	86400s	80.251.205.35.bredband.3.dk	AS44034	Hi3G Access AB	80.251.192.0/20	🇩🇰 Denmark	Odder

📧 MX Records#

4 records 70ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	172800s	mail1.hefu.dk	80.251.205.35	80.251.205.35.bredband.3.dk	AS44034 Hi3G Access AB
20	172800s	mail2.hefu.dk	80.209.68.68	80.209.68.68.static.fibianet.dk	AS44869 FIBIA P/S
30	172800s	mail3.hefu.dk	95.209.155.98	95.209.155.98.mobile.3.dk	AS44034 Hi3G Access AB
40	172800s	odin.hefu.dk	142.132.179.114	odin.hefu.dk	AS24940 Hetzner Online GmbH

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 258ms

TXT Record
v=spf1 +mx +a +ip4:80.251.205.35 +a:80.251.205.35.bredband.3.dk +ip4:95.209.155.98 +a:95.209.155.98.mobile.3.dk +a:smtp.3.dk +a:smtp1.tre.se +a:pasmtp.tele.dk +ip4:80.209.68.68 +a:80.209.68.68.static.fibianet.dk ?all

✉️ SPF#

Policy	Record (sarfu.dk)
?all (neutral)	v=spf1 +mx +a +ip4:80.251.205.35 +a:80.251.205.35.bredband.3.dk +ip4:95.209.155.98 +a:95.209.155.98.mobile.3.dk +a:smtp.3.dk +a:smtp1.tre.se +a:pasmtp.tele.dk +ip4:80.209.68.68 +a:80.209.68.68.static.fibianet.dk ?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 2026-10-08 02:28:55

www	NXDOMAIN
www vs bare domain	www does not resolve sarfu.dk: 80.251.205.35 (AS44034) www.sarfu.dk: no address (all like this)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 8/10 · policy: ?all

warn "?all" is neutral: it gives receivers no guidance, much like having no SPF
warn 8 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

2 records 210ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail1.hefu.dk	DANE-EE · Full cert · SHA-256	CA0299AF31366E8CAFD125E1933C7811…
SMTP _25._tcp.mail2.hefu.dk	DANE-EE · Full cert · SHA-256	CA0299AF31366E8CAFD125E1933C7811…

🔐 DNSSEC#

141ms

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

🏷️ SOA#

75ms

Field	Value
Serial	2022060801
Primary NS (MNAME)	ns1.hefu.dk
Responsible (RNAME)	hostmaster@hefu.dk
Refresh	14400s
Retry	7200s
Expire	3600000s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-12 08:09:52

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2007-06-18
Expires	2027-06-30 (256d)

📋 WHOIS#

⏱️ Lookup Timing#

63ms

56ms

70ms

AAAA

93ms

TXT

258ms

CAA

49ms

HTTPS

48ms

TLSA

210ms

SOA

75ms

MTA-STS

149ms

DNSSEC

141ms

SRV

166ms

Total

1801ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-23 23:36:42	11402ms	7 NS 1 A 4 MX	🔓 Insecure
2026-08-28 09:48:27	2840ms	7 NS 1 A 4 MX	🔓 Insecure
2026-07-02 08:04:11	3560ms	7 NS 1 A 4 MX	🔓 Insecure
2026-06-24 22:01:41 shown	1801ms	7 NS 1 A 4 MX	🔓 Insecure
2026-06-17 22:12:40	4018ms	7 NS 1 A 4 MX	🔓 Insecure