Xenu's Link Sleuth - Xenus Link Sleuth checks Web sites for broken links.
Scrutiny - Scrutiny for Mac helps you manage and improve any number of websites. Link check, search, full website spell check, XML sitemap generator, SEO audit
Link Evaluator - Link Evaluator is a Firefox extension designed to help users evaluate the availability of online...
LinkChecker - LinkChecker is a free, GPL licensed website validator.
HyperCare - A professional software for checking and editing missed links, TAG and Script errors of your website or MS html help contents automatically and easily.
A1 Website Analyzer - Analyze websites and save data into XML, CSV etc. Extract data about internal linking and importance calculations, file sizes, download times, HTML validation errors etc. across entire websites.