[grok1fy]

Gravatar uses hashes for privacy so the email addresses themselves do not have to be transmitted.

To maintain email privacy, you could use a straight pass-through when using Gravatar. In this case, your URL could look like:

http://robohash.org/620050a4db5104bae758cd75171d64ca?gravata...

[e1ven]

Good idea!

I've added this.

Try - http://robohash.org/620050a4db5104bae758cd75171d64ca?gravata...