classroom.dk
Last scanned: 2026-08-28 16:47:16  ·  1589ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   49ms
NameserverIP addressesPTRASN / ISP
ns1.parkingcrew.net 13.248.158.159 a94f3aae71d6f0705.awsglobalaccelerator.com AS16509 Amazon.com, Inc.
ns2.parkingcrew.net 76.223.21.9 a94f3aae71d6f0705.awsglobalaccelerator.com AS16509 Amazon.com, Inc.
🌍 A Records1 records   50ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.247.81.99 3600s — AS206834 Team Internet AG 104.247.80.0/22 🇨🇦 Canada —
📧 MX Records
📧
No MX records found
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover104.247.81.99
🔶 Autoconfig104.247.81.99
🔷 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 Records1 records   52ms
FlagsTagValue
0 issue letsencrypt.org
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC113ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial1787921496
Primary NS (MNAME)ns1.parkingcrew.net
Responsible (RNAME)hostmaster@classroom.dk
Refresh28800s
Retry7200s
Expire604800s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
49ms
A
50ms
MX
41ms
AAAA
53ms
TXT
350ms
CAA
52ms
HTTPS
50ms
TLSA
965ms
SOA
0ms
MTA-STS
84ms
DNSSEC
113ms
SRV
109ms
Total
1589ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 16:47:16 1589ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-08-26 15:44:29 1627ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-08-24 17:51:50 1601ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-08-17 19:56:25 10395ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-08-06 04:31:59 2048ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-08-03 15:40:28 977ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-06-23 06:33:50 3731ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-06-20 17:12:07 1930ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-16 21:05:25 2476ms 2 NS 1 A 0 MX 🔓 Insecure View
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