| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 216.139.213.144 | 3600s | — | AS32400 | Ntirety, Inc. | 216.139.208.0/20 | 🇺🇸 United States | — |
| TXT Record |
|---|
| protonmail-verification=f609f8ef9b7a37bf2771b9b1af3c838b13ea4b4c |
| v=spf1 include:_spf.protonmail.ch mx ~all |
| Policy | Record (urupgaard.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch mx ~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 | 2026090101 |
| 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 | |
|---|---|---|---|---|
| 2026-09-04 15:53:17 | 1258ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-08-27 13:40:05 | 1106ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-08-27 00:45:25 | 785ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-08-25 01:42:06 | 730ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-08-23 10:07:01 | 1929ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-24 07:47:43 | 2083ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-18 03:59:14 | 1399ms | 2 NS 1 A 2 MX | 🔒 Secure | View |