1 Introduction

The Tracing HTTP Correlation Header Protocol specifies the E2EActivity HTTP header which can be used by an HTTP/1.1 client to communicate a unique identifier for an HTTP message to an HTTP server. The identifier is used in turn by the server to correlate traces generated by the server to messages received from the client.

Sections 1.5, 1.8, 1.9, 2, and 3 of this specification are normative. All other sections and examples in this specification are informative.