reCAPTCHA option allows adding a popular service providing anti-abuse security to protect your application. For integrating Google reCAPTCHA in an application, the app or web domain has to be registered to get the API keys.
IMPORTANT
If you are using additional security plugins, such as Wordfence, which may add reCAPTCHA verification across the entire site, the reCAPTCHA tab of Global Settings should be left blank.
How to Obtain reCAPTCHA Credentials?
It is a quite straightforward action.
1
After visiting the link provided, you can fill in the form fields like this: