This is no different than the server logs that any web host has. You can't block it unless you never make the request in the first place, but you can use a VPN and remove browser headers to limit your data.
> This is no different than the server logs that any web host has.
Ehh it's a bit different. I don't particularly care what (for example) some small time self hosted blog does with my IP address internally so long as it doesn't leak that data to third parties. In isolation, my IP address doesn't tell them anything about my _other_ traffic.
Cloudflare, on the other hand, hosts a significant number of websites and cross-origin assets. Their logs therefore have the potential to contain a great deal of metadata about my browsing history. Of course they'd obviously have this information either way, so I don't actually have any objection to them processing their logs in this manner.
(I do have serious concerns about the degree of centralization that has occurred, but that's a separate topic.)
> Their logs therefore have the potential to contain a great deal of metadata about my browsing history. Of course they'd obviously have this information either way, so I don't actually have any objection to them processing their logs in this manner.
Well, it's a bit better than that -- the blog post promises their analytics explicitly does not try to track you, just your visit. That is, they don't cross-correlate across visits.
