SSL/TLS & Transport
high Severity
Free Check
Insecure Cipher Suite Audit
Audits server cipher suites to ensure insecure algorithms (RC4, 3DES, CBC, MD5) are disabled.
Why It Matters
Weak ciphers allow eavesdroppers to decrypt intercepted traffic retroactively using known cryptanalytic exploits.
How We Check This
We test cipher suite negotiation and verify the absence of RC4, 3DES, export ciphers, and NULL ciphers.
How to Fix & Implement
Copy-paste configuration blocks tailored for your web server or edge proxy.
nginx snippet
ssl_ciphers 'ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384';
Frequently Asked Questions
What is Forward Secrecy?
Ephemeral Diffie-Hellman keys (PFS) ensure past sessions cannot be decrypted even if the server private key is leaked later.