Most websites aren't Google or Facebook so they're not going to generate terabytes of server logs. A million DAU will generate at most gigabytes of log activity

Most websites aren't Google or Facebook so they're not going to generate terabytes of server logs. A million DAU will generate at most gigabytes of log activity in a day. It's pretty easy to tune logs to be more compact and they're highly compressible. Most sites don't have anywhere close to a million DAU. If you can't handle processing a gigabyte of data it seems like there's fundamental problems with your development team. I don't know how to help you if you can't look at log time stamps and figure out click paths for users. It was a solved problem twenty years ago. It really doesn't matter how long it took someone to read and article on a blog. They either saw your ads or clicked affiliate links or they didn't. It doesn't really matter if they finished an article or bounced right off the page. It doesn't matter if they took ten minutes or twenty minutes to read an article. You don't know if their kid interrupted them half way through or if they're just a slow reader. That kind of shit is just meaningless made up metrics. It's the Gish gallop of web advertising. Throw a wall of bullshit metrics at site owners or advertisers to justify them paying for the privilege of listening to that bullshit.