HTTP 304
Not Modified
Redirect/Cache
What does "HTTP 304 Not Modified" mean?
Plain-English Meaning
The resource hasn't changed since you last requested it — use the cached version.
Common Causes
- Browser sends If-Modified-Since header
- Server confirms resource is unchanged
What Users Can Do
Invisible — makes pages load faster.
What Developers Can Do
Part of HTTP caching. Sent automatically by most web servers when configured correctly.
Related Status Codes
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