Check if URL Exists/Domain Exists, check multiple urls or if url/Web site is valid software. Easily check to see if a url exists using this software. You can validate multiple URLs at once, it is a great tool for search engine optimization/purchasing used domain names. With this software: quickly cut and paste a set of URLs from a text file. Check the list of URLs. You also have the option of generating a ran. This version is the first release on CNET Download.com.