Crawling is only part of the issue. Data needs to be compiled and copied from your server to theirs, simply stated.
Much like you would write down your friend’s information and meta data into your address book for easy organization and retrieval, search engines do the same (and more).
So, how do you find out if your website has been indexed, and at least “available” to be found for your keywords?
Look at this quick video (I put in my highest production budget ever….Not)