instructure.dk
Last scanned: 2026-08-27 00:20:05  ·  3572ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   67ms
NameserverIP addressesPTRASN / ISP
ns-1354.awsdns-41.org 205.251.197.74
2600:9000:5305:4a00::1		 ns-1354.awsdns-41.org
ns-1354.awsdns-41.org		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
ns-1799.awsdns-32.co.uk 205.251.199.7
2600:9000:5307:700::1		 ns-1799.awsdns-32.co.uk
ns-1799.awsdns-32.co.uk		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
ns-2.awsdns-00.com 205.251.192.2
2600:9000:5300:200::1		 ns-2.awsdns-00.com
ns-2.awsdns-00.com		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
ns-996.awsdns-60.net 205.251.195.228
2600:9000:5303:e400::1		 ns-996.awsdns-60.net
ns-996.awsdns-60.net		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
🌍 A Records2 records   128ms
IPTTLPTRASNISP / OrgCIDRCountryCity
54.165.95.219 3600s ec2-54-165-95-219.compute-1.amazonaws.com AS14618 Amazon.com, Inc. 54.160.0.0/13 🇺🇸 United States Ashburn
54.191.191.127 3600s ec2-54-191-191-127.us-west-2.compute.amazonaws.com AS16509 Amazon.com, Inc. 54.176.0.0/12 🇺🇸 United States Boardman
📧 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)
🔐 DNSSEC197ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial1
Primary NS (MNAME)ns-2.awsdns-00.com
Responsible (RNAME)awsdns-hostmaster@amazon.com
Refresh7200s
Retry900s
Expire1209600s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
67ms
A
128ms
MX
71ms
AAAA
82ms
TXT
346ms
CAA
120ms
HTTPS
84ms
TLSA
198ms
SOA
0ms
MTA-STS
164ms
DNSSEC
197ms
SRV
151ms
Total
3572ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 00:20:05 3572ms 4 NS 2 A 0 MX 🔓 Insecure View
2026-06-20 11:36:28 2442ms 4 NS 2 A 0 MX 🔓 Insecure View
2026-06-17 15:19:01 268ms 0 NS 0 A 0 MX ❓ Unknown View
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