c3.dk
Last scanned: 2026-08-31 20:36:12  ·  723ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   47ms
🌍 A Records2 records   30ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.47.161 300s AS13335 Cloudflare, Inc. 104.21.0.0/17
172.67.149.17 300s AS13335 Cloudflare, Inc. 172.67.128.0/17
📧 MX Records5 records   36ms
🔷 AAAA Records (IPv6)2 records   53ms
🔐 HTTPS Records1 records   31ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.47.161,172.67.149.17 ech=AEX+DQBBTwAgACAOmWlPq4z5qUDpGw2hdQCkGJB2jlJGHIBUXoIPWZLTWQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:2fa1,2606:4700:3037::ac43:9511
📝 TXT Records1 records   137ms
TXT Record
v=spf1 include:_spf.google.com ~all
✉️ SPF
PolicyRecord (c3.dk)
~all (soft fail) v=spf1 include:_spf.google.com ~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)
🔐 DNSSEC97ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2413581291
Primary NS (MNAME)bonnie.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
47ms
A
30ms
MX
36ms
AAAA
53ms
TXT
137ms
CAA
29ms
HTTPS
31ms
TLSA
111ms
SOA
0ms
MTA-STS
63ms
DNSSEC
97ms
SRV
49ms
Total
723ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-31 20:36:12 723ms 2 NS 2 A 5 MX 🔓 Insecure View
2026-08-27 17:36:32 1008ms 2 NS 2 A 5 MX 🔓 Insecure View
2026-07-17 00:31:06 1645ms 2 NS 2 A 5 MX 🔓 Insecure View
2026-07-05 17:46:23 34173ms 2 NS 2 A 5 MX 🔓 Insecure View
2026-07-03 12:08:34 1029ms 2 NS 2 A 5 MX 🔓 Insecure View
2026-06-28 08:05:40 2546ms 2 NS 2 A 5 MX 🔓 Insecure View
2026-06-16 18:47:06 535ms 2 NS 2 A 5 MX 🔓 Insecure View
2026-06-16 18:40:31 749ms 2 NS 2 A 5 MX 🔓 Insecure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone