Some countries, mainly China, block the domain google.com, so the CAPTCHA won't load. There are several other countries that have also done this in the past, and there is no guarantee that they won't do it again. recaptcha.net is an official alternative that is not blocked in any of those countries: https://developers.google.com/recaptcha/docs/faq#can-i-use-recaptcha-globally. I would like to suggest switching over to that so truly everyone can make use of the plugin.
Some countries, mainly China, block the domain google.com, so the CAPTCHA won't load. There are several other countries that have also done this in the past, and there is no guarantee that they won't do it again. recaptcha.net is an official alternative that is not blocked in any of those countries: https://developers.google.com/recaptcha/docs/faq#can-i-use-recaptcha-globally. I would like to suggest switching over to that so truly everyone can make use of the plugin.