414 URI Too Long

What it means

Usually caused by putting too much data in query parameters.

Common causes

• Large data in the query string.
• A redirect loop that keeps appending parameters.

How to fix it

1. Send large data in a POST body instead.
2. Check redirects for parameter loops.

Example response

HTTP/1.1 414 URI Too Long
Content-Type: text/plain; charset=utf-8

Worked example

A client sends a request the server cannot fulfill as submitted. Check the response body and request details, correct the input or permissions, and retry only after the relevant issue is resolved.

How to read this response

1. Find the status line in your browser's Network panel, API client, or server access log.
2. Read the response body and headers shown above; headers such as Location, Allow, Retry-After, and WWW-Authenticate explain the next step.
3. Use the code's class to orient your diagnosis: informational, successful, redirected, request-related, or server-side.

How to check a status code

Enter a URL in the HTTP Status Checker to see its status code, every redirect hop, and response time. For redirect-heavy pages, the Website Speed Test shows how much time redirects add.

Frequently asked questions

What it means: HTTP 414

414 URI Too Long: The URL is longer than the server will process.

Common causes: 414

Large data in the query string. A redirect loop that keeps appending parameters.

How to fix it: HTTP 414

Send large data in a POST body instead. Check redirects for parameter loops.

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