| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 51.89.138.56 | 43200s | vps-8ed4033f.vps.ovh.net | AS16276 | OVH SAS | 51.89.0.0/16 | 🇬🇧 United Kingdom | London |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 51.89.138.56 |
| 🔶 Autoconfig | 51.89.138.56 |
| TXT Record |
|---|
| protonmail-verification=315526f4949585d380718a93d8b81369ef473c21 |
| v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (brugger.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (_dmarc.brugger.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine |
| 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 | 2026083101 |
| 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 23:34:21 | 1563ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-08-08 06:35:15 | 7217ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-08-03 13:57:31 | 1439ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-30 16:13:51 | 675ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-25 17:02:41 | 633ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-16 17:10:47 | 899ms | 2 NS 1 A 2 MX | 🔒 Secure | View |