Feder and Crazy Egg: keep Crazy Egg, check the numbers you run on.
No, Feder is not a replacement for Crazy Egg. Keep Crazy Egg. Feder does a different job beside it: it reads what your connected apps recorded and compares each number with your own history, so you know when one cannot be trusted.
Why would I need this?
Because the question is not what the number is. It is whether you can trust it.
Is Feder an alternative to Crazy Egg?
No. Crazy Egg is a website tool for heatmaps, session recordings, A/B testing and web analytics. Feder does a different job: it watches the numbers your tools record and says when one cannot be trusted. Nothing here asks you to switch.
Do I need Feder if I have Crazy Egg?
They do different jobs, so one does not stand in for the other. Keep Crazy Egg for the job it does. Feder's job is to say when a number your tools record has gone quiet or moved outside your own history.
What does Crazy Egg do better?
Crazy Egg heatmaps count every pageview on the pages you choose to track, rather than a sample.
In Crazy Egg's words:
By default, Heatmaps on Crazy Egg do not sample, and track 100% of pageviews on targeted pages.
Crazy Egg Heatmaps | Website User Behavior Reports, read 2026-11-12.Crazy Egg recordings show where a visitor's mouse or finger goes during a visit.
In Crazy Egg's words:
Watch exactly where your visitor's mouse or finger goes.
Crazy Egg | Website User Session Recordings - Try It For Free, read 2026-11-12.Crazy Egg loads its script asynchronously and says it does not slow down your site.
In Crazy Egg's words:
The Crazy Egg Javascript is asynchronous, so it won't slow down site speed or performance
Crazy Egg FAQ | Best Website Optimization Software, read 2026-11-12.
What can go wrong with Crazy Egg's numbers?
Crazy Egg tracks the pages you choose to track, so a page nobody set up can have no heatmap data.
In Crazy Egg's words:
Crazy Egg does not auto-create Heatmaps for all pages. Rather, we only track pageviews for pages that you choose to track.
Crazy Egg FAQ | Best Website Optimization Software, read 2026-11-12.Crazy Egg deletes session recordings automatically after its retention period, so older recordings can be gone when you look for them.
In Crazy Egg's words:
Session Recordings are kept for 24 months, after which they are automatically deleted.
Crazy Egg FAQ | Best Website Optimization Software, read 2026-11-12.Crazy Egg notes that in rare cases a heatmap or test can stay pending or show zero visits, and its help center explains how to check that the script is installed.
In Crazy Egg's words:
But in some rare cases, you might find a snapshot or test is still pending, or has zero visits or conversions.
Troubleshooting Your Heatmaps or Tests - Crazy Egg Support, read 2026-11-12.
How does Feder work with Crazy Egg?
- Feder has no connection to Crazy Egg today, so it reads nothing from it.
- The two can run side by side: Crazy Egg keeps doing its job, and Feder checks the numbers your other tools record against your own history.
- Feder only reads. It never changes anything in a connected app.
What should I ask about my Crazy Egg setup?
- Which numbers on my dashboard are counted at the source, and which are modeled or estimated?
- If this number stopped counting tomorrow, who would notice, and when?
- What does a normal week look like for this number, in my own history?
Questions owners ask
- Does Feder replace Crazy Egg?
- No. Keep Crazy Egg. Feder sits beside it.
- Does Feder send data into Crazy Egg?
- No. Feder only reads.
- How accurate is Feder?
- We do not publish an accuracy number yet. When there is a measured one, it will be here with how it was measured.
Where do these claims come from?
Every quoted statement about Crazy Egg on this page comes from Crazy Egg's own pages, quoted above with the date we read them. We read them again by 2027-05-11. If one changes, this page changes or comes down.