A session identifier is used during negotiation of a secure connection between a client and an endpoint that includes both session information and client identification information. For example, a client connects to a load balancer using transport layer security (TLS). The load balancer may pass client information, such as session information, on to an application server that determines client information to put in a TLS session identifier. The application may send the client information to include in the TLS session identifier back to the load balancer. The load balancer may combine TLS session information for resuming TLS communications and client information for identifying the client into the session identifier. The session identifier may be passed to the client for use in later communication. TLS negotiation between the client and the load balancer may be completed and a secure connection begun. The application may monitor actions performed by the client.