A plurality of network addresses from a distributed client is obtained, at least a first portion of the obtained network addresses including resolved network address responses to distributed client requests for resolved network addresses corresponding to one or more network location indicators associated with a first web service. In some examples, a process for determining a QoE metric for a network communication includes receiving a media signal from the network communication. The reflecting plane has a structure so that a light emitted from the light source is reflected toward a lower region from a cut line. The front and rear dividers are selectively adjustable relative to each other and are connected to each other by way of the front and rear clips.