So when a site relies on resources from ytimg.com, are those ads or videos? What about ggpht.com, gstatic.com, branch.io, unpkg.com, or any of the hundreds of CDNs?
Most sites I visit these days--even super common sites like medium.com--have dozens (or even the hundreds alluded to above) of dependencies from seemingly unrelated sites. I have no idea if those are CDNs for common js libs, analytics libs, spammer libs, tracking libs, or what. I recognize things like CDN links for jQuery, Bootstrap, React, etc. I see many that seem to be Facebook tracking.
Of course, blocking many of these breaks the page. I have started to avoid sites that break without access to urls I can't identify. But this is both laborious to vet, and isolating.
There is no longer such a thing as easy, anonymous, inclusive web browsing.
