I want to track visitors who come to my site through a particular link. For example, those visitors coming from http://www.domain.com/abc123, I can get their pageviews, time on site, bounce rate, referrer pages per visit etc. After that I can store that info into by database on daily basis. Can anyone suggest any service or api or any software for the same? I have used Google Analytics utm tags that work straight well for my requirement but I don't know how many links I can track with it. I have around 80-100 links to track a day and the number of links will be increasing. I couldn't find any documentation regarding limit of campaigns in GA. If there's no such limit, I can start this project. Thanks