Friendly Captcha V1 + V2 

• Register your domain to https://docs.friendlycaptcha.com/#/installation
• Add sitekey and secretkey to the Typoscript constants
• In TypoScript Constants, set the captcha method to friendlycaptcha or friendlycaptcha2 for V1 or V2 respectively
• If your account allows enabling the EU endpoint, you can change the Verify Url Endpoint typoscript constant to EU