Modern web app, architecture blueprint, 3-tier structure, cloud-based, scalable, microservices, containerization, Docker, Kubernetes, load balancer, API gateway, service discovery, circuit breaker, message broker, database clustering, relational database, NoSQL database, caching layer, content delivery network, security firewall, monitoring dashboard, DevOps pipeline, agile development, collaborative workflow, real-time analytics, data visualization, user behavior tracking, A/B testing, canary release, blue-green deployment, rolling update, rollback mechanism, observability, tracing, logging, alerting system, cloud-native, hybrid architecture, multi-cloud strategy.