Relax - Version 2.70 Relax is a free GPL licensed, multi-platform web server log analyzer written in Perl. This tool can be used to track which search engines, search keywords and referring URLs led visitors to the web site, to track down bad links and to analyze what keywords to bid at pay-per-click search engines. Generated HTML reports can be configured to include links to other web based keyword analysis tools, thus making it easier to further improve the ranking of web pages in search engines. Relax can natively read log files in RefererLog and Apache combined log formats but it can be configured to read virtually all other formats.