Yes, I'm pretty sure it is by domain name. One suggestion: custom domains for your users. This could also help you "monetize", or at least help the service su

Yes, I'm pretty sure it is by domain name. One suggestion: custom domains for your users. This could also help you "monetize", or at least help the service sustain itself. Thank you for writing and sharing such a useful service. People like you make the Internet better and offer hope for the future.