Godfrey suggests that, with the exception of unique identifiers, all other data on users can contribute to improving the Web and the user's experience on it. Collection of the data should therefore not be considered an invasion of privacy. Understandably, the loggers referred to their own systems in answering these questions. For Spielvogel , one desirable tool is a client that sits on the user's system and logs history and usage patterns can be used to sample detailed usage. Grand 's collection tools include server-side APIs, registration forms, authentication servers and registration databases.
Referrals are useful.
Cookies are useful within sites and domains. Certificates are useful across sites. Smith wonders how one can keep up with all the data flow. We are struggling to maintain our summaries on only two million hits a day. Everyone agreed that the proxy, on requesting a page, should report the number of times it has delivered that page since the last time it made the request.