studyplan.dk
📜 Historical scan 2026-06-28 10:46:12  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   250ms
NameserverIP addressesPTRASN / ISP
ns01.one.com — — —
ns02.one.com — — —
🌍 A Records1 records   219ms
IPTTLPTRASNISP / OrgCIDRCountryCity
199.36.158.100 3600s — AS54113 Fastly, Inc. 199.36.158.0/24 🇺🇸 United States —
📧 MX Records1 records   214ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   584ms
TXT Record
hosting-site=smartstudy-d207e
✉️ 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)
🔐 DNSSEC513ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA219ms
FieldValue
Serial2026060901
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
250ms
A
219ms
MX
214ms
AAAA
196ms
TXT
584ms
CAA
191ms
HTTPS
221ms
TLSA
180ms
SOA
219ms
MTA-STS
248ms
DNSSEC
513ms
SRV
214ms
Total
1193ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-02 12:09:23 28763ms 2 NS 0 A 0 MX ❓ Unknown View
2026-08-16 20:24:08 4610ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-09 23:51:42 656ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-10 10:17:46 8513ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-02 00:52:48 445ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-28 10:46:12 1193ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-25 23:04:14 518ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-19 23:22:36 739ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 11:32:49 991ms 2 NS 1 A 0 MX 🔒 Secure View
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