Session Recording and Heatmaps: What Actually Works
Tools that record how individuals used a page, and aggregate where people clicked, moved and scrolled.
Samir Haddad
Where most projects go wrong
The usual mistakes:
- Recording form fields containing personal data
- Treating a heatmap as evidence of intent
- Drawing conclusions from a handful of recordings
- Indefinite retention of session data
What good looks like instead
- Mask personal and payment data at capture
- Establish a lawful basis before recording
- Use recordings to generate hypotheses, then test them
- Watch recordings of failed journeys specifically
- Set a retention period and enforce it
Why it matters
They answer what and where far better than why, and they carry privacy obligations that are frequently ignored.
The specs that matter
| Measure | Figure |
|---|---|
| Privacy | recordings can capture personal data and need a lawful basis |
| Masking | sensitive fields must be excluded from capture |
| Heatmaps | aggregate behavior, not intent |
| Sample bias | recordings are a non-random sample |
| Best use | generating hypotheses rather than proving them |
Knowing when to hand it over
Tip: Bring in help when recording tools may be capturing personal data, when a privacy review is due, or when qualitative findings must be turned into a testing program.
Where this comes from
- Information Commissioner's Office — Data protection and tracking
- Nielsen Norman Group — Behavioral research methods
- Baymard Institute — Research methodology
The figures and practices above come from the sources listed.
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Where to go next
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