Recaptcha on many domains. Possible with ip adress?

Hi all, We want to use recaptcha on a few 100s sites, but manually adding each domain to the api-key list is too much work since the global api-key is gone. Is there a solution for this? We already tried to fill in ip adresses since all the sites run on two servers, but that doesn't seem to work. (if you ping every website, you will only get 2 ip adresses) -It is not very clear if using ip adresses is possible. Is it possible? -Is there another solution for using recaptcha on many domains? -Is there an api or something like that to automatically add a domainname to the list of domains connected to the api-key? Thanks in advance for answers! Ruben -- You received this message because you are subscribed to the Google Groups "reCAPTCHA" group. To unsubscribe from this group and stop receiving emails from it, send an email to recaptcha+unsubscribe@googlegroups.com. To post to this group, send email to recaptcha@googlegroups.com. Visit this group at http://bit.ly/1dkFnYd. For more options, visit http://bit.ly/P65DvS.