Web architecture describes the structural interactions layout between application services, backend databases, client browsers, and middleware layers working synchronously over high-speed networks.
The foundational framework governing web interactions is the Request-Response Model. The client web browser initiates contact via structured HTTP/HTTPS packages. The target network server analyzes the payload request, queries associated internal application processes, and responds with appropriate data structures.
Modern scalable ecosystems rely on a 3-tier approach: Presentation Tier (Frontend UI frameworks), Application Tier (Backend server runtime APIs), and Data Tier (Persistent file structures and database clouds).