---
title: Error 10043
description: Troubleshoot Cloudflare error 10043.
image: https://developers.cloudflare.com/core-services-preview.png
---

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# Error 10043

## Error 10043: Source URL in redirect is too long

This error indicates that the source URL in a redirect exceeds the maximum allowed length.

### Common causes

This error occurs when the source URL value of a URL redirect is too long. The maximum length of a source URL is 32,768 characters. Possible causes of this error are:

* Dynamic URLs that contain excessive query parameters or tracking codes.
* Unnecessary path segments or redundant subdirectories in the URL.

### Resolution

You need to use a shorter URL as the source URL.

```json
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```