        It is an <a href="https://github.com/levkhomich/akka-tracing">Akka distributed tracing extension</a>
        which can be used as performance diagnostics and debugging tool. Distributed tracing approach used by Zipkin
        (which it is based on) provides synergy with akka-remote and akka-cluster. Extension integrates with
        Finagle services, Spray toolkit (covered in this template) and Play framework (see
        <a href="http://typesafe.com/activator/template/activator-play-tracing" target