Definition
A CDN (Content Delivery Network) caches and delivers content closer to users, reducing origin load and latency.
Why it matters
CDNs lower origin costs but introduce their own egress and request fees. Pricing must reflect the blended cost.
Pricing implications
If CDN costs are significant, include them in per-GB pricing or in fixed overhead. Use a blended cost across regions and providers.
Measurement tips
Track cache hit rate and per-GB cost to understand true CDN impact.
Checklist
- Use blended CDN egress costs across regions.
- Include request fees if they are material.
- Monitor cache hit rate and its effect on cost.
- Separate CDN costs from origin costs in models.
- Update costs when CDN pricing changes.
- Use tiered pricing if CDN costs spike at high usage.
- Avoid assuming CDN costs are zero.
- Validate with billing data monthly.