HTTP 408 Request Timeout

What Does HTTP 408 Mean?

HTTP 408 Request Timeout indicates that the server timed out waiting for the client to send a complete request. The client did not produce a request within the time that the server was prepared to wait.

HTTP 408 occurs when the client starts a connection but fails to send the complete request (headers and body) within the server's configured timeout period. This can happen due to slow network connections, client-side issues, or intermittent connectivity.

Unlike 504 (Gateway Timeout) which involves a timeout between servers, 408 is about the timeout between the client and the origin server. The client can retry the request without modification.

Common Causes of 408 Request Timeout

The client failed to send a complete request within the server's timeout period. Common causes: slow network connections, client-side crashes or freezes, browser/tab being inactive, and intermittent connectivity.

The server closed the connection because it waited too long for the complete request.

How to Fix 408 Request Timeout

Retry the request. If the issue persists, check your network connection, increase client-side timeout settings, and reduce request payload size. For server administrators: consider increasing the client timeout value if legitimate requests are being timed out.

For slow connections, implement request compression and optimize payload size.

Related Status Codes

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