tdc-proton.dk
Last scanned: 2026-08-25 17:16:27  ·  506ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   47ms
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 Records
🌍
No A records found
📧 MX Records1 records   53ms
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
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   176ms
TXT Record
protonmail-verification=ccaf0c192f193a54a28496728436c283a35ecc41
v=spf1 include:_spf.protonmail.ch mx ~all
✉️ SPF
PolicyRecord (tdc-proton.dk)
~all (soft fail) v=spf1 include:_spf.protonmail.ch mx ~all
📨 DMARC
PolicyRecord (_dmarc.tdc-proton.dk)
p=reject v=DMARC1; p=reject; sp=reject; fo=1; rua=mailto:cv1zdpyr@ag.dmarcian-eu.com; ruf=mailto:cv1zdpyr@fr.dmarcian-eu.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   45ms
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…
🔐 DNSSEC87ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial2026081101
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
47ms
A
39ms
MX
53ms
AAAA
46ms
TXT
176ms
CAA
55ms
HTTPS
50ms
TLSA
45ms
SOA
0ms
MTA-STS
49ms
DNSSEC
87ms
SRV
57ms
Total
506ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-25 17:16:27 506ms 2 NS 0 A 1 MX 🔒 Secure View
2026-08-24 11:22:50 4882ms 2 NS 0 A 1 MX 🔒 Secure View
2026-08-12 08:03:22 1308ms 2 NS 0 A 1 MX 🔒 Secure View
2026-07-30 00:08:50 6618ms 2 NS 0 A 1 MX 🔒 Secure View
2026-07-18 06:59:14 2847ms 2 NS 0 A 1 MX 🔒 Secure View
2026-07-15 21:39:02 906ms 2 NS 0 A 1 MX 🔒 Secure View
2026-06-17 21:45:21 526ms 2 NS 0 A 1 MX 🔒 Secure View
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