What you'll understand after this part: When you open Zomato and search for biryani, a cascade of events happens in under 200 milliseconds — DNS lookups, HTTP requests, database queries, frontend rendering, caching. After these 8 chapters, you'll know exactly what happens at every step. More importantly, you'll understand why each layer exists and what breaks when it fails.

What you'll build: A personal website with a blog, contact form, dark mode, and a real URL anyone in the world can visit. Everything from Parts 0 and I, integrated.