keitaro is a tracking software that is not self-hosted, so each user must install it in their own vps instances, it is compatible with vultr, digitalocean and it is installed from their marketplace with one click, this software completes all the functions that most popular as voluum, bemob, among others.
but it has an additional function that allows you to upload your landing page in the same tracking, thus failing to have to manually add the pixels when tracking is required without redirections.
you can install keitaro and try it for 7 days, ideal if you handle volumes of traffic and amounts of campaigns that other tracking software charge you a lot of money for.