| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 216.239.32.21 | 43200s | any-in-2015.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| 216.239.34.21 | 43200s | any-in-2215.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| 216.239.36.21 | 43200s | any-in-2415.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| 216.239.38.21 | 43200s | any-in-2615.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| TXT Record |
|---|
| protonmail-verification=d6597a36c40ec2e8c456712d3bbcf27ffb2aa93c |
| v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (echobase.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (_dmarc.echobase.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine |
| 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… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mailsec.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 | 2026081101 |
| 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 | |
|---|---|---|---|---|
| 2026-08-31 16:24:45 | 913ms | 2 NS 4 A 2 MX | 🔒 Secure | View |
| 2026-08-28 07:37:41 | 817ms | 2 NS 4 A 2 MX | 🔒 Secure | View |
| 2026-08-12 06:46:48 | 1242ms | 2 NS 4 A 2 MX | 🔒 Secure | View |
| 2026-07-18 03:02:27 | 2453ms | 2 NS 4 A 2 MX | 🔒 Secure | View |
| 2026-07-15 08:07:17 | 1081ms | 2 NS 4 A 2 MX | 🔒 Secure | View |
| 2026-07-02 01:27:11 | 823ms | 2 NS 4 A 2 MX | 🔒 Secure | View |
| 2026-07-02 01:25:31 | 1928ms | 2 NS 4 A 2 MX | 🔒 Secure | View |
| 2026-06-17 05:45:07 | 894ms | 2 NS 4 A 2 MX | 🔒 Secure | View |