421 Misdirected Request with Sucuri Firewall

The HTTP 421 Misdirected Request client error status code means that the request was sent to a server that can't provide a response. This article covers what to do if you are using Sucuri and your site is showing a 421 Misdirected Request error.

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1. Log in to your Sucuri Firewall dashboard, and select your domain.
2. Click on the Security tab in the firewall settings.
3. Under Advanced Security Options, Enable "Force passing the hostname via TLS/SSL".
4. Click Save.