ztu.dk
📜 Historical scan 2026-06-25 20:27:36  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   232ms
🌍 A Records2 records   187ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.88.39 300s AS13335 Cloudflare, Inc. 104.21.0.0/17
172.67.172.73 300s AS13335 Cloudflare, Inc. 172.67.128.0/17
📧 MX Records
📧
No MX records found
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover104.21.88.39
🔶 Autoconfig172.67.172.73
🔷 AAAA Records (IPv6)2 records   228ms
🔐 HTTPS Records1 records   216ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.88.39,172.67.172.73 ech=AEX+DQBBhQAgACBDVoN6M0evZKRa47Qn1C55d8GGxpzOgAEo31YV5YaFBgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:5827,2606:4700:3036::ac43:ac49
📝 TXT Records1 records   502ms
TXT Record
MS=ms97125873
✉️ 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)
🔐 DNSSEC307ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA219ms
FieldValue
Serial2405131702
Primary NS (MNAME)anita.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
232ms
A
187ms
MX
197ms
AAAA
228ms
TXT
502ms
CAA
200ms
HTTPS
216ms
TLSA
382ms
SOA
219ms
MTA-STS
261ms
DNSSEC
307ms
SRV
258ms
Total
2049ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-26 02:05:16 1814ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-07-05 23:13:44 1460ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-26 15:02:37 1773ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-25 20:27:36 2049ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-19 13:17:10 3612ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-17 20:20:49 1598ms 2 NS 2 A 0 MX 🔓 Insecure View
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