Dynamic IP (Rotating Proxy): IP changes on each request or at intervals. Great for large-scale scraping and bypassing rate limits.
Static IP: The IP stays the same throughout sessions. Perfect for login-based systems or account management.
It depends on the plan:
Shared proxies: IPs are used by multiple clients. Cheaper, but higher risk of bans.
Dedicated/static proxies: Assigned exclusively to you. More stable, better for sensitive operations.