This post is a place to keep track of the sources of this info. So far I’ve only found a few numbers. Must keep digging.
- 30% of users delete cookies according comments by Jules Polenetsky on a panel at the W3C Workshop on Web Tracking and Privacy
- 40% of users delete or block according to OpenTracker.net
- 36+% of Australian Internet users delete their third-party cookies in a month according to comScore report (2011)
- 76% of Safari users block third party cookies according to Gibson Research. Note: This is super-high because Safari is the only browser that blocks third-party cookies by default