Fast Link Checker is used for searching sites for broken links. It works like a robot of a search engine (Googlebot, MSNBot, WISENutbot, Alexa, etc.). You specify the file to start checking from and Fast Link Checker goes through all pages this file has links to until it checks all links on the site. If 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 has a flexible management system and can check links to documents, images, scripts and other files. You can check links either only on one page or restrict the level of subdirectories. Fast Link Checker can check links in files available via the HTTP, HTTPS, FTP or FILE protocols and ignores all Gopher, Chrome, News and mailto: links. It supports HTTP, HTTPS and SOCKS proxy servers. Fast Link Checker allows you to generate and save reports. It implements a multithreaded algorithm allowing it to download and check several pages at a time, which considerably increases the performance.