But need Javascript for advertising and tracking. If this is incorrect, I'm interested in any examples where Javascript is not used and what percentange of online advertising this comprises.
Last time I checked, Carbon Ads don't use JavaScript, although it is not a targeted advertising business. As for analytics, there is a considerable amount of personally identifying information you can collect exclusively with User-Agent headers in your sites' requests, and of course the age-old technique of tracking pixels still works in most cases.
