How many sub-pages you have included in Google, Yahoo and Bing is an indicator of how visible and important your site is. If you are not indexed, ie: included, you cannot be found either.
Make sure all your web pages are included in Google, Bing and Yahoo.
Determine indexation
To get all your web pages indexed or included in search engines, the first step is to consider search engine optimisation. Before you are found, you don’t exist for search engines and therefore cannot be found by any users either.If you for instance publish 20 pages, but only 10 are found in Google, there might be some kind of technical problem with your site. It also may be because you have no internal or external links pointing to your newly published content, or there might be duplicate content issues.