Integrity - Feature comparison of link checkers for Mac: Integrity, Integrity Plus and Scrutiny
Xenu's Link Sleuth - Xenus Link Sleuth checks Web sites for broken links.
LinkChecker - LinkChecker is a free, GPL licensed website validator.
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
SiteCheckerTool.com - Website Analytics & Tools
Link Evaluator - Link Evaluator is a Firefox extension designed to help users evaluate the availability of online...