What is the role of a CDN (Content Delivery Network) in improving API performance?

• A CDN caches and delivers static or semi-static content from edge servers close to

users.

• Reduces latency and improves response times.
• Helps with traffic offloading, reducing load on origin servers.
• Supports DDoS protection and scaling under heavy loads.

👉 Example: Cloudflare, Akamai, AWS CloudFront.

🔹 API Documentation & Tools – Interview Q&A