Fast Link Checker is a tool used for searching sites for broken links. It begins checking from the starting page and goes through all pages one by one until it checks all links on the site. If Fast Link Checker finds a broken link, it shows its position in the document, the cause why it does not work and a hint how it can be fixed. Fast Link Checker can check links to all pages both on current and external sites, the availability of documents, images, scripts, style sheets and other objects linked to pages. It can check links on the entire site, on one of its pages or in one directory. Fast Link Checker can check links in files available via the HTTP, HTTPS, FTP, FTPS and RTSP protocols on sites hosted by any properly configured web server. Furthermore, Fast Link Checker supports password-protected sites and FILE protocol, which allows checking link in HTML files without accessing a web server.