Google doesn't crawl or index all my pages
Although we index billions of webpages and are constantly working to increase the number of pages we include, we don't guarantee that we'll crawl all of the pages of a particular site. Google doesn't crawl all the pages on the web, and we don't index all the pages we crawl. It's perfectly normal for not all the pages on a site to be indexed.
While we can't guarantee that all pages of a site will consistently appear in our index, we do offer our guidelines for maintaining a Google-friendly site. Check the following:
Google may have indexed your page under a different version of your domain name. For example, if you receive a message that
http://example.com is not indexed, make sure that you've also added
http://www.example.com to your account (or vice versa), and check the data for that site.
If your site is new, it may not be in our index because we haven't had a chance to crawl and index it yet. Read more about how to tell us about your site.
If your site used to be indexed, but no longer is, you can read more about possible reasons for this.
If your site isn't appearing in Google search results, or it's performing more poorly than it once did (and you believe that it does not violate our Webmaster Guidelines), you can ask Google to reconsider your site.