f01.dk
Last scanned: 2026-08-25 02:35:44  ·  17373ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers5 records   86ms
NameserverIP addressesPTRASN / ISP
ns1.linode.com 2600:14c0:6::2
92.123.94.2		 c1-2.akashield.net
c1-2.akashield.net		 AS21342 Akamai International B.V.
AS21342 Akamai International B.V.
ns2.linode.com 2600:14c0:6::3
92.123.94.3		 c1-3.akashield.net
c1-3.akashield.net		 AS21342 Akamai International B.V.
AS21342 Akamai International B.V.
ns3.linode.com 2600:14c0:7::3
92.123.95.3		 c2-3.akashield.net
c2-3.akashield.net		 AS21342 Akamai International B.V.
AS21342 Akamai International B.V.
ns4.linode.com 2600:14c0:7::4
92.123.95.4		 c2-4.akashield.net
c2-4.akashield.net		 AS21342 Akamai International B.V.
AS21342 Akamai International B.V.
ns5.linode.com 2600:14c0:7::2
92.123.95.2		 c2-2.akashield.net
c2-2.akashield.net		 AS21342 Akamai International B.V.
AS21342 Akamai International B.V.
🌍 A Records1 records   175ms
IPTTLPTRASNISP / OrgCIDRCountryCity
139.144.73.109 43200s mx.f01.dk AS63949 Akamai Connected Cloud 139.144.64.0/20 🇩🇪 Germany Frankfurt am Main
📧 MX Records1 records   84ms
PriorityTTLMail ServerIP addressesPTRASN
0 43200s mx.f01.dk 139.144.73.109
2a01:7e01::f03c:93ff:fe17:44b0		 mx.f01.dk
—		 AS63949 Akamai Connected Cloud
AS63949 Akamai Connected Cloud
🔷 AAAA Records (IPv6)1 records   159ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a01:7e01::f03c:93ff:fe17:44b0 43200s — AS63949 Akamai Connected Cloud 2a01:7e00:0:0:0:0:0:0/30 🇩🇪 Germany Frankfurt am Main
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   361ms
TXT Record
google-site-verification=6kSEsidr46syoBukhTsQbDt-QUVKbCMJW1DvPvO1178
v=spf1 a mx a:mx.f01.dk -all
✉️ SPF
PolicyRecord (f01.dk)
-all (hard fail) v=spf1 a mx a:mx.f01.dk -all
📨 DMARC
PolicyRecord (_dmarc.f01.dk)
p=reject v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; rua=mailto:webmaster@folkmann.it; ruf=mailto:webmaster@folkmann.it;
📬 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
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC314ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA53ms
FieldValue
Serial2021000012
Primary NS (MNAME)ns1.linode.com
Responsible (RNAME)theme1256@gmail.com
Refresh14400s
Retry14400s
Expire1209600s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
86ms
A
175ms
MX
84ms
AAAA
159ms
TXT
361ms
CAA
139ms
HTTPS
87ms
TLSA
170ms
SOA
53ms
MTA-STS
189ms
DNSSEC
314ms
SRV
435ms
Total
17373ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-25 02:35:44 17373ms 5 NS 1 A 1 MX 🔓 Insecure View
2026-06-25 22:19:53 4642ms 5 NS 1 A 1 MX 🔓 Insecure View
2026-06-25 20:56:57 1231ms 5 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 09:10:43 1658ms 5 NS 1 A 1 MX 🔓 Insecure View
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