What happens if you have a DDOS on Route53? I'm sure they can handle the attack, but do you have to pay for the requests? Or are there clauses that they drop th

What happens if you have a DDOS on Route53? I'm sure they can handle the attack, but do you have to pay for the requests? Or are there clauses that they drop the fees if the requests were malicious? If not, the financial risk could easily outweigh the benefits of availability for smaller companies.