c-zero.dk
📜 Historical scan 2026-06-16 18:41:10  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   49ms
NameserverIP addressesPTRASN / ISP
a.dns.gandi.net
b.dns.gandi.net
c.dns.gandi.net
🌍 A Records1 records   52ms
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   184ms
TXT Record
v=spf1 include:_mailcust.gandi.net -all
✉️ SPF
PolicyRecord (c-zero.dk)
-all (hard fail) v=spf1 include:_mailcust.gandi.net -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
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC121ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA48ms
FieldValue
Serial1594915776
Primary NS (MNAME)a.dns.gandi.net
Responsible (RNAME)hostmaster@gandi.net
Refresh10800s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)10800s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
49ms
A
52ms
MX
55ms
AAAA
51ms
TXT
184ms
CAA
50ms
HTTPS
54ms
TLSA
76ms
SOA
48ms
MTA-STS
101ms
DNSSEC
121ms
SRV
0ms
Total
563ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-21 18:59:35 1742ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-06-21 05:33:44 1182ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-16 18:50:05 460ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-06-16 18:41:10 563ms 3 NS 1 A 0 MX 🔓 Insecure View
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