If you know a website where your potential clients communicate, click on 'Extract Email Address From Websites' and enter the URL in the 'Websites List'. Processing speed will be as much faster as the number of processes. It means how many processes will be created to process your search criteria. If you want to crawl searched sites external links then this value must be at least 3. If the level is 1, the homepage and its links will be crawled but none of the links will be crawled.
If value is 0, the homepage will be crawled but none of its links will be crawled. Then it will scan all of the websites and look for information. The program will use the search engine(s) specified. Software will extract email adresses by the entered keyword related to your niche.
Program can extract can your targeted customers email addresses from internet/websites or files on computer.