Which routing method in Route 53 allows distributing traffic based on assigned weights?

Weighted Routing in Amazon Route 53 allows you to distribute incoming traffic across multiple resources, such as instances or endpoints, based on assigned weights. This routing method gives you the flexibility to dictate the proportion of traffic that should be directed to different resources. For example, if you have two resources and want to route 70% of the traffic to one and 30% to the other, you can assign appropriate weights to achieve this distribution.

This is particularly useful in scenarios like canary testing or gradual deployment, where you want to gradually shift traffic to a new version of an application without a complete cutover. By adjusting the weights, you can control the amount of traffic heading to each resource dynamically.

Other routing methods like Geolocation Routing direct traffic based on the geographic location of the user, Failover Routing focuses on directing traffic to a primary resource and redirecting to a backup when the primary fails, and Simple Routing straightforwardly directs traffic without the complexity of weight or geolocation considerations. Each serves a distinct purpose, but for distributing traffic according to specific proportions, Weighted Routing is the go-to method.