Cloud CDN

Overview

• Serve content closer to users
• Suitable for frequently accessed data
• Works with external HTTP(S) load balancers
• HTTP caching—controlled with cache control header, or automatic caching of static content
• Sources:
  • Instance groups
  • Zonal NEGs
  • Serverless NEGs (e.g. App Engine, Cloud Functions)
  • Cloud Storage
  • (Custom origins not allowed)

CDN Interconnect

• Low latency connectivity to certain CDN providers, with lower egress fees
  • Akami, Verizon, Cloudflare, Fastly
• Pull and push cache fills
• Best for:
  • High volume egress—lower costs
  • Frequent content updates—lower latency