Friendly Captcha
ES_FRIENDLY_CAPTCHA_SITE_KEY
Friendly Captcha site key, found on your application in the Friendly Captcha dashboard.
define('ES_FRIENDLY_CAPTCHA_SITE_KEY', '<site-key>');
ES_FRIENDLY_CAPTCHA_API_KEY
Friendly Captcha API key, created under API Keys in the Friendly Captcha dashboard. Used to verify the submitted solution on the server.
define('ES_FRIENDLY_CAPTCHA_API_KEY', '<api-key>');
Note
Both keys must be provided for the feature to work, either as global variables or in the settings fields.