https://privacytests.org rate Brave as the best browser.
It’s still unfinished, but he’s working on a tool for you to test your own browser. You can do so here:
https://privacytests.org/me.html
It’s the exact same tests he runs, that are open source. Everything can be found, (if you don’t trust the guy) on his GitHub:
https://github.com/privacytests/privacytests.org/tree/master/scripts
You can but:
- There is no clear indication of bias, from PrivacyTests, just accusations.
- If the tools and tests ARE open source (which they are), they can be checked for bias/cheating. Someone could also expand (fork) upon them to give more of a rounded opinion.
A better defense against accusations of bias is a group or persons transparency.
Simply having an open source methodology and code base isn’t transparency either, since it takes a much, much deeper and more developed skill set to audit both software source code and testing methodology than it takes to raise an eyebrow at sus circumstances.