c4u.dk
Last scanned: 2026-08-27 01:16:58  ·  1336ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   70ms
NameserverIP addressesPTRASN / ISP
ns.nsd.dk 172.104.147.68 ns.nsd.dk AS63949 Akamai Connected Cloud
ns2.nsd.dk 62.242.205.2 ns2.nsd.dk AS3292 TDC Holding A/S
🌍 A Records1 records   84ms
IPTTLPTRASNISP / OrgCIDRCountryCity
45.79.249.226 3600s web001.nsdhosting.dk AS63949 Akamai Connected Cloud 45.79.240.0/20 🇩🇪 Germany Frankfurt am Main
📧 MX Records1 records   69ms
PriorityTTLMail ServerIP addressesPTRASN
20 3600s c4u.dk 45.79.249.226 web001.nsdhosting.dk AS63949 Akamai Connected Cloud
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records
📝
No TXT records found
✉️ SPF
✗ No SPF record — mail spoofing not restricted
📨 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)
🔐 DNSSEC192ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026082506
Primary NS (MNAME)ns.nsd.dk
Responsible (RNAME)admin@ns.nsd.dk
Refresh3600s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
70ms
A
84ms
MX
69ms
AAAA
82ms
TXT
298ms
CAA
91ms
HTTPS
116ms
TLSA
88ms
SOA
0ms
MTA-STS
117ms
DNSSEC
192ms
SRV
131ms
Total
1336ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 01:16:58 1336ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-20 10:36:22 1856ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-19 04:17:26 835ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-17 23:50:15 1413ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-15 07:35:15 2517ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-06 16:19:36 904ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-03 01:09:36 1909ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-25 02:51:27 2507ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-24 02:23:51 2530ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-10 14:49:55 965ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-09 01:11:13 8446ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-06 20:45:46 783ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-03 15:31:18 1640ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-01 00:35:43 1020ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-25 01:20:11 775ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-16 18:48:14 642ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-16 18:40:07 575ms 2 NS 1 A 1 MX 🔓 Insecure View
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