dostuff.dk
📜 Historical scan 2026-06-17 04:20:15  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   37ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com — — —
ns2.simply.com — — —
ns3.simply.com — — —
ns4.simply.com — — —
🌍 A Records1 records   40ms
IPTTLPTRASNISP / OrgCIDRCountryCity
93.191.156.151 — linux265.unoeuro.com AS48854 team.blue Denmark A/S 93.191.152.0/21 🇩🇰 Denmark —
📧 MX Records1 records   44ms
PriorityTTLMail ServerIP addressesPTRASN
10 — 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 Records1 records   229ms
TXT Record
v=spf1 include:spf.tutanota.de -all
✉️ SPF
PolicyRecord (dostuff.dk)
-all (hard fail) v=spf1 include:spf.tutanota.de -all
📨 DMARC
PolicyRecord (_dmarc.dostuff.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 / DANE1 records   88ms
Service / OwnerTypeCert association
SMTP _25._tcp.mail.tutanota.de DANE-EE · Full cert · SHA-256 D141F8F3A4AAC2E4D2677AAFCC723D8E…
🔐 DNSSEC132ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA41ms
FieldValue
Serial2025042300
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
37ms
A
40ms
MX
44ms
AAAA
39ms
TXT
229ms
CAA
37ms
HTTPS
34ms
TLSA
88ms
SOA
41ms
MTA-STS
61ms
DNSSEC
132ms
SRV
0ms
Total
884ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-02 03:42:05 739ms 4 NS 1 A 1 MX 🔒 Secure View
2026-06-29 02:35:08 789ms 4 NS 1 A 1 MX 🔒 Secure View
2026-06-19 12:50:41 704ms 4 NS 1 A 1 MX 🔒 Secure View
2026-06-17 04:20:37 657ms 4 NS 1 A 1 MX 🔒 Secure View
2026-06-17 04:20:15 884ms 4 NS 1 A 1 MX 🔒 Secure View
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