You can check with indexed pages on Google with Seo quake tool or manual Way. You can Search on google - Site:www.yoursitename.com. In this way you can get exact result of index pages on Google.
In my opinion you can use search status toolbar and check how many pages of a website are index in google, yahoo, bing and other search engine.
I use the SEO Quake toolbar. You can install it on Firefox. There is an i button where you can take many information for the displayed website
direct ways is typing in the Google serach box, better is work with Google webmaster tool and submit sitemap to index all the pages