In the early days, ddg's browser used to block YouTube ads direct. But now it only blocks ads through the duckplayer.
An interesting thing about ddg is it does stop websites seeing how much battery you have. I don't know why this is useful, I just thought it was a fun fact.

This is what I get:
you're reading this on a device that doesn't have a battery in it, or the battery is at 100% while plugged in.
I found the site:
https://yhvr.me/about/
Also eff has a similar one:
https://coveryourtracks.eff.org/