"If you thought that everything on 0net is built on free/libre/open-source software, surprise, you were wrong"
In that it is similar to what LibreJS aims to do, but in less automated fashion
Sites that load and use nonfree js only optionally and give an appropriate warning before doing so will not be on this list (e.g. KxoVid is reported to do so when using "chromecast", which i cannot test)
Please note that this list also does not contain sites known for mining scripts, because there is already a NoMiner blocklist
It is also not intended to list outright malware sites, though there might be an overlap
New sites will be added as soon as possible if their code is licensed explicitly under non-free license or they are using known proprietary code. Otherwise, there might be a delay while i try to contact site maintainer for clarification. If there is no reply, suspected site might be added after a week