TLS Version Checker
v1.2.1Check TLS protocol compatibility guidance and browser capability details.
Reference for TLS protocol versions — which are deprecated (SSL 2/3, TLS 1.0, 1.1), which are current (TLS 1.2, 1.3) — with browser support notes and migration guidance.
How to use- →Browse protocol versions to see support status and known vulnerabilities.
- →Use the cipher suite section to check TLS 1.3 preferred algorithms.
- →Reference when configuring nginx ssl_protocols or Apache SSLProtocol directives.
TLS Version Reference
| Version | Status |
|---|---|
| SSL 2.0 | 🔴 INSECURE |
| SSL 3.0 | 🔴 INSECURE |
| TLS 1.0 | 🟡 DEPRECATED |
| TLS 1.1 | 🟡 DEPRECATED |
| TLS 1.2 | 🟢 SECURE |
| TLS 1.3 | 🟢 RECOMMENDED |
Enter a hostname and click Generate Commands to get TLS testing commands.