If you’re looking at your Crazy Egg reports and wondering why subdomains like blog.crazyegg.com or help.crazyegg.com aren’t showing up as referrers, here’s the reason:
Crazy Egg treats all subdomains as part of the same site, unlike Google Analytics (GA), which treats subdomains as separate sources.
This means that traffic from a subdomain to your main site (or between subdomains) does not appear as a referral in Crazy Egg reports — because it’s considered internal traffic within the same website.
What’s the Difference Between a Domain and a Subdomain?
To make this clearer, let’s break it down with a simple analogy.
- Think of a domain as a house:
crazyegg.comis the house address. - A subdomain is like a room inside that house:
blog.crazyegg.comis the blog roomhelp.crazyegg.comis the support roomwww.crazyegg.comis the main living room
Even though these rooms serve different purposes, they all exist under the same roof — the crazyegg.com domain. So, moving from one room to another isn’t considered “coming from outside” the house.
That’s why Crazy Egg doesn’t treat one subdomain visiting another as a referral.