alsu.dk
Last scanned: 2026-08-28 04:28:08  ·  519ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   49ms
🌍 A Records
🌍
No A records found
📧 MX Records1 records   43ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔶 Autoconfigmaildiscover.simply.com → 94.231.108.222
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   65ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 maildiscover.simply.com
📝 TXT Records1 records   177ms
TXT Record
v=spf1 include:spf.simply.com -all
✉️ SPF
PolicyRecord (alsu.dk)
-all (hard fail) v=spf1 include:spf.simply.com -all
📨 DMARC
PolicyRecord (_dmarc.alsu.dk)
p=reject v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;
📬 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   52ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 A9D603AF4D7ED6B9246B4B68500CD6F2…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 97A3BA009F39C761BFFB6574340E8138…
🔐 DNSSEC96ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial2026031103
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
49ms
A
39ms
MX
43ms
AAAA
58ms
TXT
177ms
CAA
62ms
HTTPS
54ms
TLSA
52ms
SOA
0ms
MTA-STS
57ms
DNSSEC
96ms
SRV
65ms
Total
519ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 04:28:08 519ms 3 NS 0 A 1 MX 🔓 Insecure View
2026-07-02 18:05:23 4636ms 3 NS 0 A 1 MX 🔓 Insecure View
2026-06-26 07:21:53 568ms 3 NS 0 A 1 MX 🔓 Insecure View
2026-06-21 16:31:15 773ms 3 NS 0 A 1 MX 🔓 Insecure View
2026-06-21 14:48:16 1174ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-16 13:24:05 491ms 3 NS 0 A 1 MX 🔓 Insecure View
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