Squid Efficiency Analyzer (Network Internet -/- Other) [Release Date 16.05.2005]
Squid Efficiency Analyzer interprets a Squid log (native) to determine how much traffic can be retrieved from the cache and how much comes from the webservers in the internet.

Advanced Web-Page Efficiency Analysis (AWPEA) (Development -/- Management Distribution) [Release Date 14.04.2002]
Log-analyzers can tell you how many times where the page requested form you server and a lot of other interest but useless information. AWPEA tells you nothing besides the level of page efficiency.