Most probably there could be a problem in you robots.txt file or in meta robots.
My website cache in Google with "www.web-parsing.com", before 20 August. but after renew my domain website cache with www.web-parsing.com/index.php. After that when I search with my domain url in Google my Domain(Main) URL is not show in Google but inner page is show. Give Solution to fix this problem.
My Domain URL: *www.web-parsing.com
*Note: Link edited by Moderator.