Listen 443 SSL HTTP/2 vs. Listen 443: What's the Difference?

'listen 443 ssl http2;' and 'listen 443' differ in that the former enables SSL encryption and the HTTP/2 protocol, while the latter simply listens on port 443.

SSL (Secure Sockets Layer) is a security protocol that protects data transmission over networks, preventing data theft or tampering. HTTP/2 is the latest version of the HTTP protocol, offering faster and more efficient performance, reducing latency and network load. Therefore, enabling SSL and HTTP/2 improves website security and performance.