the keyword you need is “DDoS protection” i guess

it keeps the server from getting overloaded due to too many requests

What’s bothering you?

• Is it to give out data for AI training? I guess you can’t fundamentally protect against this, except by limiting how much content is provided to each address.
• Or is it the resource strain that it causes on your server? In that case i recommend limiting how much a single client / IP address can request in a day.