The objective of the NIST Web Metrics Testbed is to explore the feasibility of a range of tools and techniques that support rapid, remote, and automated testing and evaluation of website usability. There are currently six components: 1. Web Static Analyzer Tool (WebSAT): checks web page HTML against typical usability guidelines. 2. Web Category Analysis Tool (WebCAT): lets the usability engineer construct and conduct a web category analysis (card-sorting). 3. Web Variable Instrumenter Program (WebVIP): instruments a website to capture a log of user interaction. 4. Framework for Logging Usability Data (FLUD): a file format and parser for representation of user interaction logs (such as those captured by WebVIP). 5. VisVIP Tool: produces a 3D visualization of user navigation paths through a website, based on FLUD data. 6. TreeDec: adds navigation aids to the pages of a website.
Squid Analyzer parses the native access log format of the Squid proxy and reports general statistics about hits, bytes, users, networks, top URLs, and top second level domains. Statistic reports are oriented toward user and bandwidth control; this is not a pure cache statistics generator.
Lard is a Logging and Rotation Daemon that can replace the functionality of sysklogd and logrotate together. Logging is done almost exactly the same as syslogd, with added features such as regex matching and command triggers. Rotation can be triggered while the daemon is running safely by sending it a simple signal.