| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.0.136 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.186.5 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::6815:88 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3034::ac43:ba05 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.0.136,172.67.186.5 ipv6hint=2606:4700:3032::6815:88,2606:4700:3034::ac43:ba05 |
| TXT Record |
|---|
| protonmail-verification=082925cb93425d079b174bf4dce322abdd154877 |
| v=spf1 include:_spf.protonmail.ch mx ~all |
| Policy | Record (cloudsites.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch mx ~all |
| Policy | Record (_dmarc.cloudsites.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:address@yourdomain.com |
| 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 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2412819854 |
| Primary NS (MNAME) | graham.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-26 21:35:43 | 784ms | 2 NS 2 A 2 MX | 🔓 Insecure | View |
| 2026-08-22 10:17:48 | 2428ms | 2 NS 2 A 2 MX | 🔓 Insecure | View |
| 2026-08-20 09:33:28 | 9648ms | 2 NS 2 A 2 MX | 🔓 Insecure | View |
| 2026-08-02 22:44:50 | 2360ms | 2 NS 2 A 2 MX | 🔓 Insecure | View |
| 2026-06-28 08:21:19 | 1196ms | 2 NS 2 A 2 MX | 🔓 Insecure | View |
| 2026-06-27 10:46:24 | 1856ms | 2 NS 2 A 2 MX | 🔓 Insecure | View |
| 2026-06-25 14:25:34 | 1036ms | 2 NS 2 A 2 MX | 🔓 Insecure | View |
| 2026-06-16 21:26:12 | 688ms | 2 NS 2 A 2 MX | 🔓 Insecure | View |