| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 91.92.140.50 | 3600s | — | AS61098 | Akenes SA | 91.92.140.0/22 | 🇨🇭 Switzerland | Zurich |
| TXT Record |
|---|
| protonmail-verification=73e04e348e3db13e33f066406a1578822c12004b |
| v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (defops.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch ~all |
| Service / Owner | Type | Cert 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… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026080901 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-09-01 03:48:54 | 826ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-08-26 23:17:59 | 935ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-08-10 13:11:50 | 1132ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-07-11 07:26:22 | 1274ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-23 23:54:11 | 780ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-19 16:44:44 | 2534ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-17 01:54:32 | 2412ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-17 01:31:16 | 878ms | 2 NS 1 A 2 MX | 🔒 Secure | View |