What is a tracking domain?

A tracking domain is the branded domain used for rewriting click and open tracking links. It replaces generic ESP tracking URLs with ones that match the sender’s brand, increasing trust and reducing phishing suspicion. It is the lighthouse that guides your fleet without displaying foreign markings.

This domain is implemented as a CNAME record such as clicks.tidalmail.com pointing to the ESP’s tracking infrastructure. Beyond branding, this alignment is a major deliverability signal because it proves the sender controls the domain behind every tracked link.