LinkScan
LinkScan is the industrial strength link checking and website management tool. It also does HTML validation and creates two types of publication quality SiteMaps. LinkScan is offered in two versions: LinkScan Workstation is a single-user implementation designed for individual content developers in large enterprises, and for organizations having smaller websites with up to 300 documents, and LinkScan Server is the complete multi-user, enterprise LinkScan implementation including LinkScan/Dispatch and handles extremely large websites comprising up to or more than 250,000 HTML documents and/or 100,000 external links.