3xx Redirection messages
304Not Modified
Resource not modified (use cache)
#When does this occur?
Returned when the client's cached version is still valid. Response to conditional requests with If-Modified-Since or If-None-Match.
#How to handle?
Use the cached version. No need to download new data.
#Example
HTTP Response
HTTP/1.1 304 Not Modified
Content-Type: application/json
Date: Tue, 10 Feb 2026 07:17:24 GMT
{
"status": 304,
"message": "Not Modified"
}#Related Status Codes
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