Edge Delivery

Learn when a Multi-CDN architecture is justified, how to steer traffic safely, and how to test failover without creating cache or security gaps.

Learn what to cache at the edge, how to handle dynamic and personalized content, and how to verify cache correctness without leaking data.

Understand DNS lookup latency, recursive caching, authoritative DNS, Anycast, TTLs, DNSSEC, measurement, migration, and rollback for faster websites.

A step-by-step CDN migration plan covering configuration parity, DNS, TLS, cache behaviour, observability, staged cutover, and rollback.

Learn what TTFB measures, how to isolate DNS, network, CDN, application, and database delays, and which changes reliably reduce server response time.