One Time Passwords (OTP) and (new!) Universal 2nd Factor (U2F) are good ways to protect your online accounts against identity theft. They are much more secure than passwords and easier to use. But not all websites support these methods. Furthermore it could have been a hassle to find out if a particular website supports it or not. This is why we setup a list of (hopefully) all websites and self-hosted software with support for OTP and U2F.