cusoon.dk
Last scanned: 2026-08-10 23:14:21  ·  1128ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   45ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S
🌍 A Records1 records   68ms
IPTTLPTRASNISP / OrgCIDRCountryCity
188.179.254.190 43200s 188-179-254-190-dynamic.dk.customer.tdc.net AS3292 TDC Holding A/S 188.176.0.0/13 🇩🇰 Denmark Herlev
📧 MX Records2 records   57ms
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
20 3600s mailsec.protonmail.ch 176.119.200.129
185.205.70.129
185.70.42.129		 mailsec.protonmail.ch
mailsec.protonmail.ch
mailsec.protonmail.ch		 AS62371 Proton AG
AS62371 Proton AG
AS62371 Proton AG
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover188.179.254.190
🔶 Autoconfig188.179.254.190
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   201ms
TXT Record
protonmail-verification=52676808d4bdf8dad71a255f14da812c7750a961
✉️ 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 / DANE4 records   149ms
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…
SMTP _25._tcp.mailsec.protonmail.ch DANE-EE · SPKI · SHA-256 6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mailsec.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
Serial2026081001
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
45ms
A
68ms
MX
57ms
AAAA
71ms
TXT
201ms
CAA
60ms
HTTPS
47ms
TLSA
149ms
SOA
0ms
MTA-STS
90ms
DNSSEC
81ms
SRV
89ms
Total
1128ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-10 23:14:21 1128ms 2 NS 1 A 2 MX 🔒 Secure View
2026-07-25 00:20:35 6875ms 2 NS 1 A 2 MX 🔒 Secure View
2026-07-15 12:20:34 24792ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-26 21:41:06 705ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-23 13:07:05 908ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-21 19:03:29 1026ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-16 23:16:39 678ms 2 NS 1 A 2 MX 🔒 Secure View
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