Glossary

Rate limiting

A target slowing or refusing a client that sends too many requests, usually with a 429 status.

Distinguish it from a block. A 429 usually clears if you slow down; a 403 on the first request is about who you appear to be.

Further reading: Diagnosing 403 and 429.

Related terms

  • IP rotation
    Changing the exit address between requests or connections.
  • Exponential backoff
    Waiting progressively longer between retries, usually with a random component.

Test it on your own targets.

Create an account, run the measurement harness against your real workload, and read the numbers before you commit to anything.