Design an Image CDN in 2026 — Resize, Cache, and Serve at Scale
Image CDN design: on-demand transformations, format negotiation (AVIF/WebP), cache hierarchy, abuse mitigation, and the architecture that scales.
CDN
Design a CDN — Edge Caching at Internet Scale in 2026
End-to-end CDN design. Anycast routing, edge / regional / origin tiers, cache hierarchy, purge propagation, and the operational realities.