jdu.dk
Last scanned: 2026-09-01 21:30:06  ·  990ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   60ms
NameserverIP addressesPTRASN / ISP
helium.ns.hetzner.de 193.47.99.5
2001:67c:192c::add:5		 helium.ns.hetzner.de
helium.ns.hetzner.de		 AS12337 noris network AG
AS12337 noris network AG
hydrogen.ns.hetzner.com 213.133.100.98
2a01:4f8:0:1::add:1098		 hydrogen.ns.hetzner.com
hydrogen.ns.hetzner.com		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
oxygen.ns.hetzner.com 2a01:4f8:0:1::add:2992
88.198.229.192		 oxygen.ns.hetzner.com
oxygen.ns.hetzner.com		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
🌍 A Records1 records   67ms
IPTTLPTRASNISP / OrgCIDRCountryCity
144.76.221.253 86400s jdu.dk AS24940 Hetzner Online GmbH 144.76.0.0/16 🇩🇪 Germany Falkenstein
📧 MX Records1 records   55ms
PriorityTTLMail ServerIP addressesPTRASN
10 86400s jdu.dk 144.76.221.253 jdu.dk AS24940 Hetzner Online GmbH
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   322ms
TXT Record
google-site-verification=XQ_m2XO03O0BNUMOv_4eJ-5ho4WXNb1STSXiADGspXU
v=spf1 mx a -all
✉️ SPF
PolicyRecord (jdu.dk)
-all (hard fail) v=spf1 mx a -all
📨 DMARC
PolicyRecord (_dmarc.jdu.dk)
p=none (monitor only) v=DMARC1; p=none; pct=100; rua=mailto:kontakt@jdu.dk; ruf=mailto:kontakt@jdu.dk
📬 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)
🔐 DNSSEC90ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026082201
Primary NS (MNAME)hydrogen.ns.hetzner.com
Responsible (RNAME)dns@hetzner.com
Refresh86400s
Retry10800s
Expire3600000s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
60ms
A
67ms
MX
55ms
AAAA
74ms
TXT
322ms
CAA
59ms
HTTPS
90ms
TLSA
308ms
SOA
0ms
MTA-STS
104ms
DNSSEC
90ms
SRV
105ms
Total
990ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-01 21:30:06 990ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-08-22 15:54:24 2773ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-08-21 15:34:28 958ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-08-14 04:26:48 1777ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-22 05:47:31 884ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-20 16:21:21 1150ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-18 05:11:25 1351ms 3 NS 1 A 1 MX 🔓 Insecure View
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