rsgd.dk
Last scanned: 2026-08-27 10:32:06  ·  1015ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   85ms
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 Records
🌍
No A records found
📧 MX Records1 records   46ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.tutanota.de 185.205.69.211
185.205.69.213
185.205.69.214		 mail.w11.tutanota.de
mail.w13.tutanota.de
mail.w14.tutanota.de		 AS210909 Tutao GmbH
AS210909 Tutao GmbH
AS210909 Tutao GmbH
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   251ms
TXT Record
t-verify=b2244cbf6f8734b802855753849a206d
v=spf1 include:spf.tutanota.de -all
✉️ SPF
PolicyRecord (rsgd.dk)
-all (hard fail) v=spf1 include:spf.tutanota.de -all
📨 DMARC
PolicyRecord (_dmarc.rsgd.dk)
p=quarantine v=DMARC1; p=quarantine; adkim=s
📬 MTA-STS347ms
CheckResult
Status🔒 Enforce
TXT record (_mta-sts)✓ Found
HTTPS policy✓ Valid
Modeenforce
Policy ID20190723
max_age86400s
Policy MXmail.tutanota.de
📈 TLSRPT
✗ No TLSRPT record — no SMTP TLS failure reporting
📜 CAA Records
✗ No CAA records — any CA may issue certificates
🔗 TLSA / DANE1 records   167ms
Service / OwnerTypeCert association
SMTP _25._tcp.mail.tutanota.de DANE-EE · Full cert · SHA-256 D141F8F3A4AAC2E4D2677AAFCC723D8E…
🔐 DNSSEC251ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial2025070205
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
85ms
A
47ms
MX
46ms
AAAA
49ms
TXT
251ms
CAA
58ms
HTTPS
94ms
TLSA
167ms
SOA
0ms
MTA-STS
347ms
DNSSEC
251ms
SRV
122ms
Total
1015ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 10:32:06 1015ms 3 NS 0 A 1 MX 🔒 Secure View
2026-07-03 01:16:38 866ms 3 NS 0 A 1 MX 🔒 Secure View
2026-06-25 01:17:41 807ms 3 NS 0 A 1 MX 🔒 Secure View
2026-06-23 02:22:38 1178ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-17 14:03:03 2184ms 3 NS 0 A 1 MX 🔒 Secure View
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