You can use your Blue Cash Everyday card anywhere American Express is accepted.
While Amex isn't considered to be amongst the most widely accepted credit card networks, it's still accepted in more than 10.6 million U.S. locations.
If you plan on using your Blue Cash Everyday card abroad, keep in mind that it has a 2.7% foreign transaction fee and it's not accepted in many restaurants and stores, especially in Europe. So you better have...