When I was beginning my venture on learning to purchase expired domains. After watching so many tutorials. I still didnt get a thorough feel as some tutorials say your fine and other say do not buy if not indexed. They never gave a full reason. Im not an expert of any kind just wanted to throw this out there in case anybody else was wondering what I was 6 months ago. There is a difference between expired domains you are purchasing from scraped domains that are not indexed anymore as they were expired and never repurchased and Google de-indexes them. Other expired domains you purchase from godaddy auctions are expiring from someones account. You pick it up and transfer it your account. These will still be indexed as its recent. If you purchase an expired domain that was recently expired and is not indexed there is a high chance it has some issues. I purchase both index and non index domains. Just do a thorough scan of them and see why they would not be indexed. Hope that helps
