So the first term I searched was "cognitive". Search for it yourself, and click the first result.
Go back and click "cached".
That was a cool experience.
I wonder how cached results are created and is there some kind of copyright violation because they store the content.
I suspect it might be something mentioned in https://github.com/masukomi/arc90-readability. I believe it's what powers "readability" view in modern browsers (firefox https://github.com/mozilla/readability, safari).