| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 172.66.0.70 | 3600s | — | AS13335 | Cloudflare, Inc. | 172.66.0.0/22 | 🇺🇸 United States | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 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 |
| TXT Record |
|---|
| protonmail-verification=766786e0b5892ee9a3116736a288e55856e51dd0 |
| v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (veranoproduction.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 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081701 |
| 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 | |
|---|---|---|---|---|
| 2026-09-02 06:32:57 | 601ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-27 16:34:35 | 1008ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-26 21:34:17 | 671ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-21 15:56:23 | 4760ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-18 05:01:31 | 4811ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-17 20:55:22 | 863ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-03 22:00:07 | 16707ms | 2 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-27 03:35:26 | 581ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-25 17:50:48 | 934ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-24 08:05:31 | 695ms | 2 NS 1 A 1 MX | ⚠️ Bogus | View |
| 2026-06-18 01:02:25 | 2716ms | 2 NS 1 A 1 MX | 🔒 Secure | View |