Document load times may be determined by (a) accepting a first set of one or more document identifiers, (b) for each of the one or more document identifiers of the first set, requesting the document, downloading the document, and rendering the document, and (c) determining a first elapsed time from about the time of requesting a first document identified by the first set of one or more document identifiers to about the time of completion of the rendering of a last document identified by the first set of one or more document identifiers. This may be repeated for a second set of documents. For example, a first set of document(s) may be located at a first serving facility and the second set of document(s) may be located at a second serving facility.