Route 53 AWS की DNS सेवा है (domain names को addresses में बदलना, routing policies के साथ); CloudFront AWS का CDN है (Content Delivery Network, तेज़ delivery के लिए दुनिया भर में edge locations पर content cache करना)। दोनों web applications के लिए performance और availability में सुधार करते हैं।
Route 53 — DNS और traffic routing
Route 53 is a managed DNS service (+ domain registration):
→ translates domain names (example.com) → IP addresses / AWS resources
→ ROUTING POLICIES (intelligent traffic direction):
- SIMPLE → one destination
- WEIGHTED → split traffic by percentage (e.g. A/B testing, gradual rollout)
- LATENCY → route users to the lowest-latency region (performance)
- GEOLOCATION → route by user location
- FAILOVER → route to a backup if the primary fails (HIGH AVAILABILITY)
→ HEALTH CHECKS → route away from unhealthy endpoints
