Security Tools
Read-only checks of a public website's HTTPS, security headers, cookies, redirects and email authentication, with plain explanations and no fake scores.
4 tools · browser-based where possible; server-assisted checks say so on their page
Website security
A whole-site view: HTTPS, headers, redirects, cookies and published policies.
HTTP security headers
The response headers that harden browsers against injection and framing.
Email & DNS security
SPF, DMARC, DKIM, DNSSEC and CAA for a domain.