Website security & SSL checker
Check your SSL certificate, HTTPS and security headers — and get a clear fix for every issue.
Your result
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Good to know
Website security, explained
What does the security checker test?
It checks HTTPS and the http→https redirect, the SSL certificate (trust, domain, expiry, TLS version), security headers (HSTS, CSP, clickjacking, MIME sniffing, referrer and permissions policies), cookie flags, software version leaks and mixed content.
Is this a full penetration test?
No. It is a safe, passive check of what your site sends to every visitor. It does not try to break in or look for hidden files. For a deeper review, our team can audit your site and server.
My site scored low — is it hacked?
Not necessarily. Most low scores come from missing protective headers, which are quick to add. Red items like an expired certificate or no HTTPS should be fixed first.
More free tools: see all free tools.