My #1 rule for ordering from any online business....

If it's a company I've never heard of before and/or have never ordered from before, the first thing I do is look for their phone number and address on their website. If both aren't readily available on their homepage or a "Contact" page I won't do business with them. If it is listed, you can do secondary checks various ways (Google Maps, BBB, Yelp, check if business name is registered in that state, their local chamber of commerce, etc.).

Gotta do your due-diligence in this day and age.