Proxy Rotation: Best Practices for High Success Rates

Why Rotate Proxies?

Requesting a target website thousands of times from a single IP address is a guaranteed way to get blocked. Proxy rotation distributes your traffic across thousands of varying IP addresses, making your scraper behave like a crowd of distinct users rather than a single bot.

Rotation Strategies

1. Per-Request Rotation

Assign a new IP for every single HTTP request.

• **Best for**: Stateless scraping, search engine results pages (SERPs), price monitoring.
• **Implementation**: Use a proxy gateway that handles rotation automatically on each connection.

2. Sticky Sessions

Keep the same IP address for a defined period or sequence of requests.

• **Best for**: Login flows, checkout processes, multi-step forms where session consistency is required.
• **Implementation**: Use session IDs in your proxy authentication string.

Handling Failures

Even with rotation, IPs can burn out. Implement a robust retry layer:

1. **Detect Bans**: distinguishing between 404 (Not Found) and 403 (Forbidden/Captcha).
2. **Backoff**: If a subnet seems tainted, stop using it for cooldown period.
3. **User-Agents**: Rotate User-Agent headers in sync with your proxies to further minimize fingerprinting.