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3xx · Redirection

304Not Modified

There is no need to retransmit the requested resources.

What is HTTP 304?

The 304 Not Modified response tells the client that the cached version of the resource is still valid. The server doesn't return the content, saving bandwidth. Used with If-Modified-Since or If-None-Match headers.

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Common Use Cases

  • Browser cache validation
  • CDN cache hits
  • API response caching with ETags

Quick Facts

Code304
Category3xx
TypeRedirection

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