Numbers tell you what's happening: how many visits, how many conversions. What they don't tell you is why. That's where heatmaps and session recordings come in (tools like Smartlook or Hotjar) which show real user behaviour visually.
Click maps: where people actually click
They show, overlaid on your page, exactly where people click. It's common to discover people trying to click something that isn't clickable (an image that looks like a button but isn't) a clear sign that area needs redesigning.
Scroll maps: how far people actually get
They show what percentage of visitors reach each point on the page. If your most important information sits further down than where most people stop scrolling, in practice almost nobody sees it.
Session recordings: watching real navigation, one by one
They play back, like a video, how a specific person navigated: where they hesitated, what they clicked, the exact moment they abandoned a form. Watching a handful of recordings from people who didn't complete a purchase usually reveals patterns no numerical report shows on its own.
What to look for when you review all this
- Elements people try to click without success.
- The exact point where a long form gets abandoned.
- Parts of the page nobody looks at or touches, which might not be worth keeping there.
Heatmaps don't replace Google Analytics: they complement it. The numbers say what's happening; heatmaps help you understand why, and that combination is what lets you decide with judgement, instead of changing things blindly.
How often it's worth reviewing them
You don't need to check them daily. It's enough to activate them on key pages (the main landing page, your best-selling product page, the contact form) and review the accumulated data every few weeks, or right after a major design change. Reviewing too soon, with few visits recorded, tends to lead to conclusions drawn from patterns that are actually just statistical noise.
Frequently asked questions
Do heatmaps slow down the website?
Current tools are designed to have minimal impact on load speed, but they should be installed correctly (asynchronously) and you shouldn't stack several of these tools at once without a real need.
Do I need user consent to use heatmaps?
Yes. Since these tools record behaviour, they must be disclosed in the cookie policy and only activated after user consent, just like Google Analytics.
Which pages make the most sense to start with?
The ones that get the most traffic or matter most to the business: the homepage, a featured service or product page, and any form where you suspect there's drop-off. Starting there gives useful results far sooner than activating them across the whole site at once.