Exhibit 27.2 Proxy server (source Wikipedia).
A proxy server, shown in Exhibit 27.2, acts as an
intermediary for requests from clients seeking pages from the website’s server. In addition to
improving performance, a proxy server also enhances security.
The use of a proxy servers can cause issues for web analytics. Proxy servers
maintain copies of results of users’ requests for a fixed time duration, which means no request
goes from users to the servers hosting the requested resources. Consequently, no log entries are
created at the hosts, which leads to under-reporting of metrics and inaccurate analysis of user
behaviour.
