Windows URL-verification software with nice site mapping and outlining features. Shareware.

Link checking and website management tool for Unix, Linux and Windows. It also validates html and produces sitemaps.

Automatic, scheduled link checking with email notification. Nothing to install - just use a browser. Commercial service with a free trial.

Perl utility which checks internal and external links via http, writing the results to an HTML file.

Advanced Web link checker. Features dead link verification, Shockwave/Flash file format checking and scheduling of Web and e-mail reports. Free trial and commercial service can be configured to check as many sites as desired.

Weekly statistics about broken links and site quality across the web taken from checking links at sites in 19 categories. Based on the LinkAlarm software.

A site management and reporting tool featuring link checking, orphan detection, and website mapping.

Perl robot that specializes in the maintenance of distributed hypertext infostructures.

Windows Program designed to make your daily link-checking totally automated.

Sample robot application With portable source code, using the LibWWW library, which can be used to create a link checker application.