Overview
Your audience may be concentrated on one coast or spread across time zones. Source placement should follow actual access patterns instead of relying on a region's name alone.
This page describes evaluation methods, not an inventory or promise of active cities, network interconnections or storage regions. Confirm actual resources and conditions separately.
Represent real audiences and peak periods
Choose samples across important population centers, access networks and busy periods, observing both first reads and sustained transfers.
- Observe eastern, western and other important audience locations separately.
- Account for publishing and traffic peaks across time zones when checking source capacity.
- Verify that cross-region reads receive a consistent version after updates.
Use different acceptance checks for different content
Page assets, software packages and on-demand media have different reading patterns. Evaluate with real assets instead of one small test file.
Pages and images
Check concurrent small requests, content negotiation and freshness.
Software downloads
Check integrity, range requests, sustained throughput and interruption recovery.
Video playback
Check startup, segment failures and seeking, correlated with access networks.
Treat a backup source as a complete delivery plan
Cross-region recovery needs consistent data, permissions and certificates before a drill is meaningful. A successful address change alone is not application recovery.
| Area | Verify |
|---|---|
| Content | Critical assets, versions and integrity checks match |
| Access | Domains, certificates, authorization and cache rules agree |
| Recovery | Switching conditions, recovery confirmation and rollback can be executed |