Uploading a file that exceeds the server's maximum allowed size.
Submitting a form with too much data.
Sending a request with too many batched operations or large headers.
Exceeding the server's limit on the length of URL or query parameters.
Verify the URL for any typing errors or outdated links.
Check if the resource has been moved to a different URL and update your request accordingly.
Contact website administrator to confirm if the resource has been permanently removed.
Explore using an archived version of the resource if available via services like the Wayback Machine.