Exit Intent Popups: How They Work and When to Use Them

An exit intent popup appears when a visitor looks about to leave the page. On desktop, the browser can see the mouse moving quickly toward the tabs, the back button or the address bar, and that movement is the trigger. Used well, it is a last, polite offer; used badly, it is the reason people hate popups.

How does exit intent detection work?

The script watches pointer movement near the top edge of the viewport. When the pointer leaves the page area heading upward, it treats that as intent to leave and shows the message. That is why it is a desktop technique: on a phone there is no pointer travelling toward a close button.

In AutoSocialProof, “Exit intent” is one of the 9 display triggers available on every widget, including the email collector, coupon and callback request widgets.

What should you use on mobile instead?

Use behaviour that does happen on phones:

Signal	Setting	Good for
Scroll depth	50 to 70% of the page	Articles, long product pages
Time on site	45 to 90 seconds across pages	Engaged browsers
Inactivity	15 to 30 seconds without interaction	Hesitating shoppers
Pageviews	After 2 or 3 pages	Returning readers

Create two versions of the same widget: one with exit intent shown only on large screens, one with scroll depth shown only on small screens.

What should an exit popup offer?

Something the visitor would genuinely want at the moment they are leaving:

• A restock or price-drop alert for the product they looked at.
• A short, specific guide (“The 5-minute sizing guide”).
• A first-order code, if your margins allow it.
• A callback for services where a conversation closes the deal.

“Join our newsletter” on its own rarely does well because it asks for something without saying what the visitor gets.

What makes an exit popup polite?

1. Once per browser. Set frequency to once per browser and “after close: do not show again” (or wait a number of pageviews).
2. Never on checkout. Leaving checkout is a signal to fix your checkout, not to interrupt it.
3. A visible close button, plus click-outside to dismiss if you use focus mode.
4. One field if possible. Email only; name is optional.
5. A consent checkbox for EU and UK visitors, linked to your privacy policy.

How do exit popups affect SEO?

Google’s page experience guidance discourages intrusive interstitials that make content hard to access, particularly on mobile right after a visitor arrives from search. An exit popup on desktop appears when the visitor is leaving, not when they arrive, and a mobile scroll-depth widget appears after they have engaged. Keep mobile widgets small and dismissible.

Is an exit popup worth it?

Cart abandonment is high across ecommerce; the Baymard Institute reports an average documented rate around 70%. Not all of that is recoverable, but a single, relevant offer to people already leaving costs little. Measure it: submission rate in the widget’s analytics, then what those leads do in your email tool over the next month.

Setting it up in AutoSocialProof

1. Create an email collector in your campaign.
2. Write a specific offer and a one-line promise (“One email when it is back in stock”).
3. Set the trigger to Exit intent and “Display on small screens” off.
4. Duplicate it, set the trigger to Page scroll 60% and “Display on large screens” off.
5. Frequency: once per browser. After submit: do not show again.
6. Add a lead alert so each signup reaches your email tool or Slack.
7. Exclude /cart and /checkout with page rules.

That is a complete, polite exit setup in about ten minutes.