From the wiki page:
This is the public wiki for the Heritrix archival crawler project.
Heritrix is the Internet Archive’s open-source, extensible, web-scale, archival-quality web crawler project.
Heritrix (sometimes spelled heretrix, or misspelled or mis-said as heratrix/heritix/ heretix/heratix) is an archaic word for heiress (woman who inherits). Since our crawler seeks to collect and preserve the digital artifacts of our culture for the benefit of future researchers and generations, this name seemed apt.
All topical contributions to this wiki (corrections, proposals for new features, new FAQ items, etc.) are welcome! Register using the link near the top-right corner of this page.
Tool for creating a customized search collection or as reference code for a web crawler project.
I first saw this at Pete Warden’s Five Short Links for 24 August 2012.