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Knowledge Base

Rate Limiting on 404 Pages: The 428 Error

Category: TroubleShooting | Last modified: October 27, 2021

When excessive requests are made to assets or pages that return a 404 error, our servers will return an HTTP 428 Precondition Required response code.

As 404 pages are not cached, multiple requests that 404 in a short period of time can affect site performance and speed. By rate limiting excessive requests, sites are less likely to be impacted by these requests.