Google's Web Environment Integrity proposal, according to one of the developers working on the controversial fraud fighting project, aims to make the web"more private and safe."about the proposal by insisting that WEI aims to address online fraud and abuse without the privacy harms enabled by browser fingerprinting and cross-site tracking.
WEI is an attestation scheme. It provides a way for a web publisher to add code to a website or app that checks with a trusted third party, like Google, to see whether a visitor's software and hardware stack meets certain criteria to be deemed authentic.with a value – derived from as-yet-undisclosed hardware and software characteristics – that indicates whether or not the client is trustworthy. It's then up to the website publisher to decide how to respond to that signal.
The worry is that WEI could potentially be used to disallow ad blocking, to block certain browsers, to limit web scraping , to exclude software for downloading YouTube videos or other content, and impose other limitations on otherwise lawful web activities.WEI code