Skip to main content
To ensure optimal performance for all users, Bunny Storage has limits on concurrent connections and uploads.

​
Connection limits

LimitValueDescription
Concurrent Connections Per IP100-200Up to 200 connections allowed from a single IP address
Concurrent Connections Per Zone100Up to 100 concurrent connections allowed to upload to a single zone at the same time
Maximum FTP Connections Per IP25Maximum concurrent FTP connections from a single IP address

​
How limits are applied

Limits are applied on a per-server basis. Each Bunny Storage region runs multiple servers, and each server tracks limits independently. In practice, this allows you to achieve much higher concurrency than the per-server limits suggest.

​
Rate limit responses

When you reach a connection limit, further requests will be rejected with:
  • HTTP Status Code: 429 (Too Many Requests)
  • FTP Response: Connection refused
If this happens:
  1. Reduce concurrent connections
  2. Implement exponential backoff retry logic
  3. Distribute requests across longer time periods

​
Increasing limits

If you continue to hit these limits, contact support. We can increase limits on a case-by-case basis for high-volume use cases.

​
Durability and reliability

For information about data durability, redundancy, and reliability guarantees, see Durability.