TLS & Session Analyzer
Real-time analysis of your current connection's TLS configuration, HTTP version, and Cloudflare edge details.
Protocol & Version Information
Connection Details
Security Features
Network Information
Understanding TLS & HTTP3
What is TLS?
Transport Layer Security (TLS) is a cryptographic protocol that provides secure communication over a network. It's the successor to SSL and is essential for protecting data in transit.
What is HTTP3?
HTTP/3 is the latest version of the HTTP protocol, built on top of QUIC (Quick UDP Internet Connections). It provides faster, more reliable connections compared to HTTP/2.
TLS Handshake Process
The TLS handshake establishes a secure connection through cryptographic negotiation, certificate validation, and key exchange.
Certificate Chains
Digital certificates form a chain of trust from your browser to certificate authorities, ensuring the authenticity of websites.
Perfect Forward Secrecy
Modern cipher suites provide perfect forward secrecy, ensuring that even if long-term keys are compromised, past communications remain secure.
QUIC Protocol
QUIC provides built-in encryption, reduced connection setup time, and improved performance over unreliable networks.
Improving TLS Security
- Use TLS 1.3 for best security and performance
- Enable HSTS to prevent protocol downgrade attacks
- Implement DNSSEC for DNS integrity
- Use strong cipher suites with forward secrecy
HTTP3 Benefits
- Faster connection establishment
- Improved performance on poor networks
- Better multiplexing without head-of-line blocking
- Built-in encryption and authentication