There is a pretty new captcha service and it is called hCaptcha. Even better is that hCaptcha is a drop-in replacement for reCaptcha and making the change on a site is very fast and easy to do, also hCaptcha is free to use. The service is privacy-centric and you can track the number of times that hCaptcha has been used to protect your site.
In order to be able to use hCaptcha on your child site, you will need to sign up for an account. Once you have created an account you can then view the site key and
World of WordPress is hosted by:
While others try to add more components to their hosting to make it go faster, we decided to build our hosting cloud fast from the ground up. We did so by stripping out everything we knew was deadweight.