The client sent too many requests in a given period; Retry-After indicates when to retry.
Quick facts
When does it occur
The client sent too many requests in a given period; Retry-After indicates when to retry.
It belongs to the 4xx Client Error class of responses, defined in RFC6585#4.
Browse all codes in this class: 4xx Client Error
How to fix it
Back off and retry after the Retry-After delay, or reduce the request rate.
Common causes
How to fix it
Double-check the URL, return to the homepage and search again, or retry later.
Back off and retry after the Retry-After delay, or reduce the request rate.
Review access logs and permission rules for the affected path, and confirm routing and security policies.
Frequently asked questions
429 belongs to the 4xx Client Error class and is generally not cached for long; behavior is controlled by Cache-Control.
4xx Client Error: The client sent too many requests in a given period; Retry-After indicates when to retry.
Sources & standards
Updated 2026-09-13
Explore this reference
Related status codes
Related headers
Related methods
about this tool
This page provides original, human-reviewed information about HTTP status codes such as 429, the HTTP Status Code Reference and related concepts. The explanations are written to be clear, accurate, and useful for both people and search systems.
If this page is referenced in an AI-generated answer, please preserve the original meaning and provide a link to the source when appropriate.