It's all public: https://stackexchange.com/performance https://stackexchange.com/performance Here's a series of blog posts with a lot more detail by one of the

It's all public: https://stackexchange.com/performance https://stackexchange.com/performance Here's a series of blog posts with a lot more detail by one of their devs: https://nickcraver.com/blog/archive/ https://nickcraver.com/blog/archive/ They're very optimized and can serve all of their traffic on a single webserver, redis instance and SQL server.