Upcoming Change: Improved Experimental Routing for Read Replica Load Balancers

[jose-ledesma]

Starting on April 4th, 2025, we will be enhancing the routing behavior for experimental routing on eligible Data API requests. This change affects GET requests to Data APIs only; the routing behavior for all other requests remains unchanged:

Current behavior: Round-robin distribution among all databases (primary and all read replicas) in your project

New behavior: Geo-routing that directs requests to the closest available database

This enhancement delivers a better experience for your users by minimizing latency to your project. You can maximize these benefits by strategically placing Read Replicas close to your major customer locations.

For more information on geo-routing and experimental routing, please visit our documentation

[felixgabler]

Super excited about this! One quick question though: in https://supabase.com/docs/guides/platform/read-replicas#experimental-routing is says that requests using custom domains won't be routed through the load balancer. Does that mean we can't use the geo-aware read replicas if we also want custom domains (to get our domain into Sign in with Google etc)?

[felixgabler]

@jose-ledesma sorry for tagging you directly but I've asked this question on Reddit as well and would be very curious. Is there any way for us to have custom domain for Google OAuth and then also take advantage of the geo-aware read replica routing behavior?