[FEAT]: Offer an option to drop the connection if the site doesn't exist

[shootlazer]

Feature Description

I don't quite like the idea of letting everyone know what I'm running if for some reason the page doesn't exist.

So, instead of showing HTTP Error 400 and

Bad Request: Invalid hostname. Use your domain instead of your IP to access your server. Check logs if more details are needed.

There could be an option to just not send anything.

For example, Nginx proxy manager has an option to show Error 444 or a custom 404 page