f4c.dk
Last scanned: 2026-08-27 12:50:33  ·  2766ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   104ms
NameserverIP addressesPTRASN / ISP
ns3.nordicway.dk 2a01:4f8:c2c:d3c0::1
78.47.45.64		 ns3.nordicway.dk
ns3.nordicway.dk		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
ns4.nordicway.dk 2a01:4f8:c010:24a2::1
78.47.56.84		 ns4.nordicway.dk
ns4.nordicway.dk		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
🌍 A Records1 records   118ms
IPTTLPTRASNISP / OrgCIDRCountryCity
49.12.171.172 3600s cp12.nordicway.dk AS24940 Hetzner Online GmbH 49.12.0.0/15 🇩🇪 Germany Falkenstein
📧 MX Records1 records   123ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s mail.f4c.dk 49.12.171.172 cp12.nordicway.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 Records1 records   341ms
TXT Record
v=spf1 +a +mx +ip4:49.12.171.172 include:relay.mailchannels.net ~all
✉️ SPF
PolicyRecord (f4c.dk)
~all (soft fail) v=spf1 +a +mx +ip4:49.12.171.172 include:relay.mailchannels.net ~all
📨 DMARC
PolicyRecord (_dmarc.f4c.dk)
p=none (monitor only) v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400
📬 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
🔏 ACME Challenge
TypeNameValue
TXT _acme-challenge.f4c.dk XU6ue2YnTlGqwbibGosZAQTg_zBPdWluM-muT6K0S-g
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC2134ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026070301
Primary NS (MNAME)ns3.nordicway.dk
Responsible (RNAME)server@nordicway.dk
Refresh3600s
Retry1800s
Expire1209600s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
104ms
A
118ms
MX
123ms
AAAA
114ms
TXT
341ms
CAA
74ms
HTTPS
70ms
TLSA
104ms
SOA
0ms
MTA-STS
114ms
DNSSEC
2134ms
SRV
120ms
Total
2766ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 12:50:33 2766ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-25 18:08:29 2444ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-04 16:52:52 1573ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-24 15:24:37 1206ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-19 21:34:45 749ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 09:10:40 1212ms 2 NS 1 A 1 MX 🔒 Secure View
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