To start checking links, enter the address of the site into the Start URL field, set the necessary values for other parameters and click the Start button. You can click the Pause button to pause the process or the Stop button to stop it.

Fast Link Checker will download the page specified in the Start URL field, extract all links from it and try to open each of them one by one to check their availability. After Fast Link Checker checks all links on the current page, it will move on to other pages in the order they are detected in the first file.

The program puts all links it finds onto the Found Links list. Then it tries to open them and puts the results of these attempts onto the Processing list along with all additional information it receives from the server when opening the link. If the program finds a broken link, it puts it onto the Broken Links list with the information about the page where it was found, its position on the page and a possible cause why it does not work.