h28.dk
Last scanned: 2026-08-05 20:05:21  ·  935ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   36ms
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   43ms
IPTTLPTRASNISP / OrgCIDRCountryCity
76.76.21.21 3600s — AS16509 Amazon.com, Inc. 76.76.21.0/24 🇺🇸 United States Walnut
📧 MX Records1 records   40ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.protonmail.ch 176.119.200.128
185.205.70.128
185.70.42.128		 mail.protonmail.ch
mail.protonmail.ch
mail.protonmail.ch		 AS62371 Proton AG
AS62371 Proton AG
AS62371 Proton AG
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover94.231.109.254
🔶 Autoconfig94.231.109.254
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   69ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 maildiscover.simply.com
📝 TXT Records2 records   149ms
TXT Record
google-site-verification=GXzuEJVh_Qtpu_WuOdBAMVo_GUJ37ZQLCcw4LpljLNs
protonmail-verification=4720f39d91e54c4f2d935a215c66892963292f6d
✉️ SPF
✗ No SPF record — mail spoofing not restricted
📨 DMARC
✗ No DMARC record — mail spoofing not restricted
📬 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   58ms
Service / OwnerTypeCert association
SMTP _25._tcp.mail.protonmail.ch DANE-EE · SPKI · SHA-256 6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mail.protonmail.ch DANE-EE · SPKI · SHA-256 76BB66711DA416433CA890A5B2E5A053…
🔐 DNSSEC81ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026073000
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
36ms
A
43ms
MX
40ms
AAAA
33ms
TXT
149ms
CAA
54ms
HTTPS
67ms
TLSA
58ms
SOA
0ms
MTA-STS
66ms
DNSSEC
81ms
SRV
69ms
Total
935ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-05 20:05:21 935ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-02 10:06:43 1533ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-21 04:17:56 496ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-17 10:47:54 697ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-17 10:41:52 764ms 3 NS 1 A 1 MX 🔒 Secure View
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