Hi, i started to deep analyze my access log to ban automated hits to my site. I discovered that IP's with user agent Mediapartners-Google keep registering new accounts on my site from time to time. Registration form is properly secured with RECAPTCHA and requires e-mail confirm. IP address belongs to Google because reverse DNS points to rate-limited-proxy*googleDOTcom I dont understand why Google creates so many new accounts on my site. And I also dont understand how they can fill right RECAPTCHA.