qr4.dk
Last scanned: 2026-08-28 04:28:12  ·  10168ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   100ms
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   104ms
IPTTLPTRASNISP / OrgCIDRCountryCity
65.21.154.231 3600s server-01.dockerhost.dk AS24940 Hetzner Online GmbH 65.21.0.0/16 🇫🇮 Finland Helsinki
📧 MX Records1 records   105ms
PriorityTTLMail ServerIP addressesPTRASN
10 86400s mail.schumacher.dk 116.203.109.116 gaston.schumacher.dk AS24940 Hetzner Online GmbH
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverqr4.dk → 65.21.154.231
🔶 Autoconfigqr4.dk → 65.21.154.231
🔷 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
🔏 ACME Challenge
TypeNameValue
CNAME _acme-challenge.qr4.dk qr4.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC9159ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026082703
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
100ms
A
104ms
MX
105ms
AAAA
103ms
TXT
345ms
CAA
109ms
HTTPS
92ms
TLSA
170ms
SOA
0ms
MTA-STS
138ms
DNSSEC
9159ms
SRV
139ms
Total
10168ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 04:28:12 10168ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-08-28 03:44:02 1393ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-08-23 18:47:19 2385ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-28 09:19:37 1472ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 13:06:38 1985ms 3 NS 1 A 1 MX 🔓 Insecure View
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