Conversion and UX

Session Recording

Also called Session replay

A replay of an anonymised visit, showing the mouse movement, scrolling and clicks of one session.

Quick facts: Session Recording

Category
Conversion and UX
Also called
Session replay
Level
Intermediate
Affects
Form completion, mobile usability, page layout decisions
Where to see it
Microsoft Clarity, Hotjar, and similar replay tools
In this article4
  1. How session recording works
  2. Why session recordings matter
  3. Where session recording goes wrong
  4. How to act on it

How session recording works

A small script on the site records what happens in the browser — how the page was scrolled, where the pointer moved, what was clicked, which fields were entered and where the visitor stopped — and reconstructs it as a replay. It is not a video of the screen and it does not use the camera. The tool rebuilds the page from its own code and replays the interaction on top of it.

What you can watch is limited on purpose. Reputable tools mask input by default, so passwords, card details and typed personal information should never reach the recording, and you can add masking rules for anything else on the page. Recordings are usually kept for a short window and then discarded.

Why session recordings matter

Analytics tells you that people leave the pricing page; a recording shows you why. You see a visitor tap something that is not a link, scroll past the enquiry button without pausing, reach a form field and stop, or return again and again to the same paragraph. These are the things nobody reports to you, because the visitor simply leaves and never explains.

They are especially useful for phone traffic, which is where most visits in Nepal begin. Layouts that behave on a laptop can put the button under a sticky bar on a smaller screen, or make a dropdown almost impossible to operate with a thumb. A handful of recordings finds that faster than any report.

They also settle arguments cheaply. A recording of somebody failing to complete a form is more persuasive than an opinion about what the form should say.

Where session recording goes wrong

The commonest waste is watching at random. Recordings are slow to review, and most sessions are uneventful, so an afternoon of general viewing produces impressions rather than findings. The second mistake is drawing conclusions from a few sessions: a replay shows what one person did, not what most people do. It generates hypotheses; measurement confirms them.

Privacy is the risk that matters legally. If a form collects names, addresses or health details, those are personal data and the recording tool has to be configured to exclude them — masking is a setting, not a guarantee. The tool is also a third-party script, so it costs some page speed, and it should be named in your privacy policy along with what it captures and how long it is kept.

How to act on it

Watch with a question. Filter to the sessions that are likely to contain an answer: visits that reached the form and did not submit, visits from paid campaigns, visits on small screens, sessions with rage clicking or repeated back-and-forth. Pair the replays with a heatmap so you know whether the behaviour you just watched is typical.

Turn what you see into a change and then measure it, rather than acting on the recording alone. Check the masking settings before you switch anything on, keep the retention window short, and review the tool’s load on mobile page speed occasionally. Used this way it becomes a routine input to conversion rate optimisation instead of an occasional curiosity.

Do and do not

Do

  • Filter to sessions that abandoned a form
  • Confirm masking is on before recording any form
  • Check what you saw against a heatmap

Do not

  • Redesign a page from a single replay
  • Record pages that collect sensitive personal details
  • Leave the script running once nobody watches it

Questions people ask about this

Is session recording legal?

It can be, but it depends on configuration and on where your visitors are. Recording behaviour on a page is generally acceptable when personal data is masked, the practice is disclosed in your privacy policy, and any consent your visitors' laws require is obtained. Capturing typed personal details, or running it silently on sensitive forms, is where sites get into trouble.

How many recordings should I watch?

Enough to see a pattern repeat, then stop. Watching a filtered set of sessions that share a behaviour — everyone who abandoned the form, everyone on a small screen — is far more productive than working through whatever the tool shows first. If you have watched several and learned nothing new, change the filter rather than continuing.

Does a recording tool slow my website down?

It adds a third-party script, so it has some cost, usually small but not zero on slower mobile connections. Load it after the page content, keep it to a single tool rather than several overlapping ones, and check your mobile speed before and after adding it. Remove it if it is not being used.

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