Frontend

When you make site its always static and you can't make it dynamic. You can make it only with server beside your frontend. I mean you need to make server that will response on users requests. You can't make it only with your frontend part, It's unbeliavable.

Backend

When you make your server-side part it's always dynamic cause you everytime you need to have response on your request. You can't do rate limiting only with Frontend.

What can you do?

• You can connect cloudflare to your project
• Make "bridge" between frontend and backend. You can conduct all data through the Node.js
• Make Token Bucket Algorithm to reduce requests from one user

Best solutions for Laravel:

• Laravel's built-in throttle middleware.

• Cloudflare rate limiting rules.

• Node.js proxy (if you need advanced control).