What happens after you click Play on YouTube? Follow the journey from your browser to YouTube’s servers, video delivery systems, streaming, buffering, quality adjustment, and recommendations to understand how millions of videos reach your screen so quickly.
How does a website remember that you are logged in after every page you open? Learn how cookies and sessions work together, how browsers store and send cookies, how servers identify users, and what happens behind the scenes during login, logout, shopping carts, and authentication.
What happens when an app asks another system for information? Follow the journey of an API request and discover how applications, servers, databases, and services communicate behind the scenes.
