powerclass.dk
📜 Historical scan 2026-06-18 04:52:23  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   64ms
🌍 A Records2 records   42ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.55.251 AS13335 Cloudflare, Inc. 104.21.0.0/17
172.67.174.211 AS13335 Cloudflare, Inc. 172.67.128.0/17
📧 MX Records1 records   48ms
PriorityTTLMail ServerIP addressesPTRASN
10 mx.stackmail.com 185.151.28.67 mx.stackmail.com AS48254 20i Limited
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverautodiscover.stackmail.com → 45.8.227.100
🔶 Autoconfig5.22.208.19
🔷 AAAA Records (IPv6)2 records   70ms
🔐 HTTPS Records1 records   47ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBBHQAgACDvr0foaUL+kfe8cQ/jzRqJm9WG78Sy1RChao5wzEe6ewAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1
📝 TXT Records1 records   172ms
TXT Record
v=spf1 include:_spf.mlsend.com v=spf1 include:spf.stackmail.com a mx -all
✉️ SPF
PolicyRecord (powerclass.dk)
-all (hard fail) v=spf1 include:_spf.mlsend.com v=spf1 include:spf.stackmail.com a mx -all
📨 DMARC
PolicyRecord (_dmarc.powerclass.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:dmarc@powerclass.dk
📬 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)
🔐 DNSSEC90ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA33ms
FieldValue
Serial2406618402
Primary NS (MNAME)clay.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
64ms
A
42ms
MX
48ms
AAAA
70ms
TXT
172ms
CAA
51ms
HTTPS
47ms
TLSA
77ms
SOA
33ms
MTA-STS
67ms
DNSSEC
90ms
SRV
94ms
Total
912ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-29 03:30:25 1120ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-08-25 15:33:06 687ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-08-09 21:25:30 1766ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-06-18 04:52:23 912ms 2 NS 2 A 1 MX 🔓 Insecure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone