ProtonMail
protonmail.com
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We're preparing a detailed security report for protonmail.com. In the meantime, you can scan it yourself for free.
Scan protonmail.com NowWhat We Check on ProtonMail
TLS / HTTPS Security
We verify that protonmail.com uses HTTPS with a valid TLS certificate, modern cipher suites, and proper HSTS configuration to protect data in transit.
Security Headers
We check whether protonmail.com sends critical headers like Content-Security-Policy, X-Frame-Options, and Permissions-Policy to defend against XSS and clickjacking.
Content Security
We scan protonmail.com for mixed content, vulnerable JavaScript libraries, exposed admin panels, and information disclosure risks.
DNS & Email Security
We validate SPF, DKIM, and DMARC records for protonmail.com, check DNSSEC, and test for subdomain takeover vulnerabilities.
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