concretedesign.dk
Last scanned: 2026-08-28 00:19:59  ·  2396ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   55ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com 2a02:2339:1:15c::4562:4562
91.197.248.78		 ns1.simply.com
ns1.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.simply.com 185.25.141.15
2a02:2339:4006:101::4562:4562		 ns2.simply.com
ns2.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns3.simply.com 91.197.248.79 ns3.simply.com AS48854 team.blue Denmark A/S
🌍 A Records1 records   46ms
IPTTLPTRASNISP / OrgCIDRCountryCity
216.24.57.1 600s ip-216-24-57-1.ingress.render.com AS397273 Render 216.24.57.0/24 🇺🇸 United States —
📧 MX Records
📧
No MX records found
🔷 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)
🔐 DNSSEC2085ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026030902
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
55ms
A
46ms
MX
79ms
AAAA
49ms
TXT
167ms
CAA
50ms
HTTPS
43ms
TLSA
33ms
SOA
0ms
MTA-STS
161ms
DNSSEC
2085ms
SRV
67ms
Total
2396ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 00:19:59 2396ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-08-27 04:00:25 461ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-06-25 17:45:18 987ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-06-23 19:57:23 1102ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-16 22:23:51 5086ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-06-16 22:02:41 4097ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-06-16 22:00:04 1431ms 3 NS 1 A 0 MX 🔓 Insecure View
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