f01.dk
📜 Historical scan 2026-06-17 09:10:43  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers5 records   375ms
NameserverIP addressesPTRASN / ISP
ns1.linode.com
ns2.linode.com
ns3.linode.com
ns4.linode.com
ns5.linode.com
🌍 A Records1 records   339ms
📧 MX Records1 records   156ms
PriorityTTLMail ServerIP addressesPTRASN
0 mx.f01.dk 139.144.73.109 mx.f01.dk AS63949 Akamai Connected Cloud
🔷 AAAA Records (IPv6)1 records   172ms
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   472ms
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)
🔐 DNSSEC607ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA195ms
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
375ms
A
339ms
MX
156ms
AAAA
172ms
TXT
472ms
CAA
202ms
HTTPS
175ms
TLSA
233ms
SOA
195ms
MTA-STS
107ms
DNSSEC
607ms
SRV
0ms
Total
1658ms
🕐 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
dhd.dk [/] search Domains, Hosts & DNS — .dk zone