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 how CDN caching works, which assets and responses are safe to cache, how cache keys and purges work, and how to avoid serving private data publicly.

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

A practical 2026 checklist for diagnosing and speeding up a slow website, from TTFB and Core Web Vitals to images, JavaScript, caching, and CDN delivery.

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.

A practical peak-traffic readiness checklist covering capacity, caching, security, load testing, observability, and incident response.

A practical ecommerce image optimization guide covering AVIF, WebP, responsive sizing, LCP, layout stability, CDN delivery, and verification.

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

Configure provider-neutral API protection at the edge with an inventory, strong authentication, schema validation, quotas, logging, and safe rollout.

Learn how to reduce origin exposure with DNS hygiene, gateway-only access, firewall controls, authenticated edge connections, monitoring, and safe testing.

Assess whether multi-CDN reduces delivery risk. Design tested failover, consistent edge policy, and recovery objectives.

Understand when Mainland China hosting or CDN delivery introduces ICP requirements, how China DNS and Cloudflare China Network work, and how to plan a phased rollout.

Correlate CDN, WAF, DNS, bot, DDoS, and origin evidence into a defensible incident timeline with provenance, confidence labels, privacy controls, and an SRE workflow.

Design an ecommerce edge that caches public catalog content safely, keeps account and checkout state private, protects origins, and applies layered bot defense.

Model CDN delivery, request, origin, shielding, and observability costs. Measure byte offload and cache fragmentation before changing policy.

Design a publisher edge for breaking-news spikes, public caching, paywalls, ad-tech resilience, image delivery, crawler access, and origin protection.

A practical guide to HLS and DASH manifests, segment caching, range requests, origin shielding, ABR, entitlement boundaries, QoE observability, and safe rollouts.

Deploy HTTP/3 and QUIC safely with UDP fallback, TLS 1.3, 0-RTT replay controls, proxy considerations, protocol observability, and production validation.

Design a Kubernetes multi-region architecture with data consistency, traffic steering, health checks, regional failover rehearsals, and end-to-end latency measurement.

Design edge compute architecture with provider-neutral edge design: safe cache keys, origin controls, edge state boundaries, observability, and portable patterns.

Plan a global edge architecture with safe DNS and traffic steering, cache and origin design, regional failure tradeoffs, observability, and provider-neutral resilience.

A production Cloudflare Workers deployment workflow, from edge-fit assessment through edge canary rollout, Workers observability, and rollback.

A practical, verified guide to Fastly Compute deployment: reproducible WebAssembly edge packages, explicit service configuration, secret handling, local and staged testing, observability, and a tested Compute rollback path.

Configure Fastly origin shielding safely by choosing a shield near each origin, assigning it per backend, verifying cache-miss behavior, monitoring logs and headers, and retaining a rollback path.