zitron.dk
📜 Historical scan 2026-06-17 18:27:01  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   184ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com 2a02:2339:1:15c::4562:4562
91.197.248.78		 ns1.simply.com
ns1.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.simply.com 185.25.141.15
2a02:2339:4006:101::4562:4562		 ns2.simply.com
ns2.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns3.simply.com 91.197.248.79 ns3.simply.com AS48854 team.blue Denmark A/S
🌍 A Records1 records   191ms
IPTTLPTRASNISP / OrgCIDRCountryCity
94.231.103.62 — linux68.unoeuro.com AS48854 team.blue Denmark A/S 94.231.96.0/20 🇩🇰 Denmark —
📧 MX Records1 records   270ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   524ms
TXT Record
v=spf1 include:spf.simply.com -all
✉️ SPF
PolicyRecord (zitron.dk)
-all (hard fail) v=spf1 include:spf.simply.com -all
📨 DMARC
PolicyRecord (_dmarc.zitron.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   723ms
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…
🔐 DNSSEC441ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA282ms
FieldValue
Serial2025090401
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
184ms
A
191ms
MX
270ms
AAAA
213ms
TXT
524ms
CAA
233ms
HTTPS
155ms
TLSA
723ms
SOA
282ms
MTA-STS
225ms
DNSSEC
441ms
SRV
0ms
Total
3332ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 01:26:28 496ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-03 00:29:35 619ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-24 19:14:08 1253ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-24 11:19:26 694ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-23 19:06:13 1155ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-23 09:34:56 1172ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-20 18:42:56 433ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-17 18:27:01 3332ms 3 NS 1 A 1 MX 🔒 Secure View
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