SSL / TLS Checker
Check your certificate is valid and trusted, that HTTP redirects to HTTPS, and that HSTS is enforced.
Run the check →Email Security Checker
Verify SPF and DMARC so attackers can't spoof email from your domain. See your policy at a glance.
Run the check →Security Headers Checker
Test HSTS, CSP, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy on your live site.
Run the check →DNS Security Checker
Check DNS resolution, DNSSEC signing, mail records, and CAA — the foundation attackers probe first.
Run the check →