Google ReCaptcha support?

Hi there,

Jetpack Comments don’t support Google’s reCAPTCHA. There’s a variety of plugins that integrate reCAPTCHA to your site’s comments, but they don’t play well with Jetpack Comments.

However, Jetpack comes with great spam filters already built-in that can help deal with spam comments. You can read more about it here:

https://jetpack.com/features/security/spam-filtering/