Response
Retry-After
Tells the client how long to wait before making a new request after being rate-limited or redirected.
Syntax
Retry-After: <delay-seconds> | <http-date>
Example
Retry-After: 120
Description
The Retry-After header is sent with 429 Too Many Requests, 503 Service Unavailable, or 301/302 redirect responses. It indicates how long the client should wait before retrying.
The value can be a delay in seconds or an absolute HTTP date. Clients should respect this header to avoid hammering the server and to implement proper backoff behaviour.
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