Recaptcha not visible

Hello,I use recaptcha on my website and it works fine. But this week I went to my webpage, because I use the recaptcha for the registration process, but I can not see the box anymore.I was reading in the internet that google changes the adress... - is that true? thank you for answers. -- 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.