# Record Heartbeat

Push the page\_view event id onto the tenant's Redis FIFO list with a server timestamp and the cumulative active time on the page. The event id is trusted (UUID format only — no lookup). Each beat carries the running total of active whole seconds, so the latest beat for an event id supersedes earlier ones. No-op (204, before validation) when the SdkHeartbeat feature is disabled, so the endpoint is unobservable while off.

## Request[​](#request "Direct link to request")

## Responses[​](#responses "Direct link to Responses")

* 204
* 422

No content

Validation error