dbook.dk
📜 Historical scan 2026-06-17 01:15:43  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   2062ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com — — —
ns2.simply.com — — —
ns3.simply.com — — —
ns4.simply.com — — —
🌍 A Records1 records   2036ms
IPTTLPTRASNISP / OrgCIDRCountryCity
74.63.233.173 — 173-233-63-74.static.reverse.lstn.net AS46475 Limestone Networks, Inc. 74.63.192.0/18 🇺🇸 United States Los Angeles
📧 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)
🔐 DNSSEC2063ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA2050ms
FieldValue
Serial2025022501
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
2062ms
A
2036ms
MX
2060ms
AAAA
2052ms
TXT
2251ms
CAA
2050ms
HTTPS
2046ms
TLSA
534ms
SOA
2050ms
MTA-STS
2063ms
DNSSEC
2063ms
SRV
0ms
Total
2944ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 20:18:45 1671ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-08-15 11:46:47 1275ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-08-13 03:45:08 1163ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-06-24 03:57:12 804ms 4 NS 1 A 0 MX 🔒 Secure View
2026-06-21 10:28:34 567ms 4 NS 1 A 0 MX 🔒 Secure View
2026-06-20 00:56:41 3157ms 4 NS 1 A 0 MX 🔒 Secure View
2026-06-17 01:15:43 2944ms 4 NS 1 A 0 MX 🔒 Secure View
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