criticalthinking.dk
Last scanned: 2026-09-03 00:16:18  ·  2549ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   39ms
🌍 A Records3 records   46ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.26.10.3 300s AS13335 Cloudflare, Inc. 104.26.0.0/20
104.26.11.3 300s AS13335 Cloudflare, Inc. 104.26.0.0/20
172.67.70.230 300s AS13335 Cloudflare, Inc. 172.67.64.0/18
📧 MX Records1 records   47ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover172.67.70.230
🔶 Autoconfig104.26.10.3
🔷 AAAA Records (IPv6)3 records   43ms
🔐 HTTPS Records1 records   48ms
PriorityTargetSvcParams
1 service . alpn="h2" ipv4hint=104.26.10.3,104.26.11.3,172.67.70.230 ipv6hint=2606:4700:20::681a:a03,2606:4700:20::681a:b03,2606:4700:20::ac43:46e6
📝 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 / DANE2 records   87ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 97A3BA009F39C761BFFB6574340E8138…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 A9D603AF4D7ED6B9246B4B68500CD6F2…
🔐 DNSSEC2066ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2409154359
Primary NS (MNAME)beth.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
39ms
A
46ms
MX
47ms
AAAA
43ms
TXT
231ms
CAA
56ms
HTTPS
48ms
TLSA
87ms
SOA
0ms
MTA-STS
68ms
DNSSEC
2066ms
SRV
77ms
Total
2549ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-03 00:16:18 2549ms 2 NS 3 A 1 MX 🔓 Insecure View
2026-07-16 08:44:21 1989ms 2 NS 3 A 1 MX 🔓 Insecure View
2026-07-09 08:32:29 2376ms 1 NS 0 A 0 MX ❓ Unknown View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone