Module 2 · Lesson 5 of 8 · 2 min read

Heatmaps and recordings: See what visitors do, then ask why

Research lesson 5: how to analyse heatmaps and session recordings for CRO: what click and scroll maps show, how to watch recordings well, and the traps to avoid.

What these tools show

Heatmaps aggregate behaviour on a page; session recordings replay individual visits. Tools such as Microsoft Clarity provide both, with masking of sensitive content (Microsoft Learn). They answer what visitors do on a page, never why.

Reading heatmaps

Type What it shows Good question to ask
Click map Where people click or tap Are people clicking things that aren’t links? Missing the real button?
Scroll map How far down people get What important content sits below the point where most stop?
Move / attention map Where the cursor or attention lingers (desktop) Treat with caution; cursor position is only loosely related to attention

Always look at mobile and desktop separately, and at a period long enough for a few thousand page views.

Watching recordings efficiently

Don’t watch random sessions. Filter first:

  • Visitors who left from the leaking step
  • Sessions with rage clicks, dead clicks or errors
  • One segment at a time (new mobile visitors from paid search, for example)

Watch with one question in mind (“What do people do just before leaving checkout?”) and note patterns in a simple table: behaviour, how many sessions, an example timestamp.

Traps to avoid

  • Over-reading heatmaps. A cold area isn’t necessarily useless; it may be read but not clicked.
  • Generalising from one recording. Patterns need several sessions.
  • Ignoring dynamic pages. Heatmaps on pages with changing layouts (carousels, personalisation) can be misleading.
  • Privacy. Keep text masking on, never record payment fields, and respect consent: in many regions recordings need opt-in consent like other analytics (EDPB, 2020).

Turning patterns into evidence

Each pattern becomes a finding: “7 of 10 mobile visitors who left checkout scrolled back up to the order summary first.” Combine it with survey answers and analytics, and you have the evidence for a hypothesis.

Recap

Heatmaps for patterns on a page, recordings for individual behaviour, both filtered and question-led, never as the only evidence. Next lesson: reviews and support insights.

Practical exercise

Open a scroll heatmap for your most important page on mobile. Mark where 50% of visitors have stopped scrolling. List everything important that sits below that line. Then watch 10 recordings of visitors who left that page and note what they did last.

Check your understanding

1. A click heatmap shows lots of clicks on a product image. What should you conclude first?
Show answer

Visitors expect something to happen when they click it; check recordings to see what they wanted. Heatmaps show what happened, not why. Lots of clicks on a non-clickable element suggests an expectation (zoom, gallery) worth investigating.

Sources (2)

  1. About Microsoft Clarity. Microsoft Learn. Accessed 14 November 2026.

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