bookstudent.dk
Last scanned: 2026-08-27 16:10:45  ·  551ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   43ms
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
ns4.simply.com 91.197.248.80 ns4.simply.com AS48854 team.blue Denmark A/S
🌍 A Records1 records   39ms
IPTTLPTRASNISP / OrgCIDRCountryCity
94.231.103.100 600s dnsforward.simply.com AS48854 team.blue Denmark A/S 94.231.96.0/20 🇩🇰 Denmark —
📧 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)
🔐 DNSSEC120ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2022020404
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
43ms
A
39ms
MX
59ms
AAAA
46ms
TXT
162ms
CAA
37ms
HTTPS
44ms
TLSA
58ms
SOA
0ms
MTA-STS
90ms
DNSSEC
120ms
SRV
74ms
Total
551ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 16:10:45 551ms 4 NS 1 A 0 MX 🔒 Secure View
2026-08-26 14:28:27 710ms 4 NS 1 A 0 MX 🔒 Secure View
2026-07-01 01:19:58 511ms 4 NS 1 A 0 MX 🔒 Secure View
2026-06-27 00:51:40 507ms 4 NS 1 A 0 MX 🔒 Secure View
2026-06-24 07:55:54 643ms 4 NS 1 A 0 MX ⚠️ Bogus View
2026-06-16 16:20:24 2187ms 4 NS 1 A 0 MX 🔒 Secure View
2026-06-16 16:09:23 1338ms 4 NS 1 A 0 MX 🔒 Secure View
2026-06-16 16:04:27 265ms 4 NS 1 A 0 MX 🔒 Secure View
2026-06-16 16:00:02 527ms 4 NS 1 A 0 MX 🔒 Secure View
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