What is reCAPTCHA API Key Pair in Salesforce Web to Case

Setting up a reCAPTCHA key with Google is very quick and easy. You can do so here: https://www.google.com/recaptcha/admin/create

Make sure you are in the correct org’s google account when you do this, as it will be the owner and will receive the necessary stats and alerts.

I found that using V3 reCAPTCHA in my Salesforce Web-to-Case form returned an error once published, while V2 checkbox did not. I would suggest this option for a medium friction solution.