That is a great question and something I was wondering myself. I currently use DomainIQ.com because it gives me so much info that I need but of course it is just one domain at a time. When I saw your question I started to do some research and came across some nice site discussions about it.
Check them out for more information below. I also came across a software that does it but not sure how good it is. There is a chrome extension tool someone made as well. I am definitely going to check them out as well since this can be a great help.
As the owner of Scrapebox I can vouch for this application. It's just soo awesome for all kinds of scraping tasks. It also has a bulk domain checking tool too
is this worth for it's current price? im planning to buy one for myself.
will it be considered spam since it's done automated way?
do you know of any website that offers coupon codes or discounts?