Split Help > Performance > Does Split make an API call to serve features to my users?

Does Split make an API call to serve features to my users?

No. Split's SDKs install locally and do not use an API call to determine what to show your users.

Split does not make remote API calls to determine what to show your users. Instead, Split's SDKs are installed locally, on-prem and in the application layer, and do all calculations there. SDKs do poll Split's servers at a configurable interval to download the latest rollout plan instructions, but this has no impact on how long it takes to deliver a feature, treatment or experiment to your users when they access your app or service.

Published June 1, 2017