SSL/TLS & Transport
critical Severity
Free Check
Modern TLS Version (TLS 1.2+ / TLS 1.3)
Ensures support for TLS 1.2 and modern TLS 1.3 protocols while disabling insecure legacy standards (TLS 1.0, 1.1, SSLv3).
Why It Matters
Legacy SSL/TLS protocols have known cryptographic vulnerabilities (BEAST, POODLE) and fail PCI DSS compliance.
How We Check This
We negotiate TLS handshakes and verify support for TLS 1.2 and 1.3 while confirming older protocols are rejected.
How to Fix & Implement
Copy-paste configuration blocks tailored for your web server or edge proxy.
nginx snippet
ssl_protocols TLSv1.2 TLSv1.3; ssl_prefer_server_ciphers off;
Frequently Asked Questions
Why is TLS 1.3 superior?
TLS 1.3 reduces handshake latency to 1 RTT (or 0 RTT) and removes obsolete cryptographic ciphers.