Sometimes when i google i see this result
Are you MyTwitterName on Twitter? If so, you can see more results like this by connecting your Twitter account to your Google Account. Learn more
How does google know my twitter name? I checked and it doesnt seem to be an iframe. I know sites are not able to access other sites cookies/data for exploits (stealing cookies/hijacking account but also for privacy) reasons.
So how does google know my twitter name? Is twitter making that info accessible to every site i browse (and if so how?) is google guessing by whats on my browser (referals maybe?) or using data in my gmail account?