udvekslingsstudent-usa.dk
Last scanned: 2026-08-27 18:15:58  ·  926ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   35ms
🌍 A Records2 records   30ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.31.213 300s AS13335 Cloudflare, Inc. 104.21.0.0/17
172.67.179.251 300s AS13335 Cloudflare, Inc. 172.67.128.0/17
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)2 records   29ms
🔐 HTTPS Records1 records   31ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.31.213,172.67.179.251 ech=AEX+DQBByQAgACBjyLikba3Vx8c+/hSkq61oFduvV4cgG79C+GctpedRTQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:1fd5,2606:4700:3037::ac43:b3fb
📝 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)
🔐 DNSSEC98ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2413323706
Primary NS (MNAME)carter.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
35ms
A
30ms
MX
30ms
AAAA
29ms
TXT
140ms
CAA
33ms
HTTPS
31ms
TLSA
42ms
SOA
0ms
MTA-STS
48ms
DNSSEC
98ms
SRV
47ms
Total
926ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 18:15:58 926ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-07-24 05:28:53 10310ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-07-01 03:47:10 1090ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-25 05:49:01 1175ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-20 04:24:25 1446ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-17 12:18:57 945ms 2 NS 2 A 0 MX 🔓 Insecure View
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