Exit intent works by tracking cursor movement (on desktop) or back-button behavior (on mobile). When it detects a visitor is about to leave, it triggers a popup — usually offering a discount, lead magnet, or alternative CTA.
The data is mixed. Exit intent popups can recover 5-15% of abandoning visitors when done well. They can also annoy visitors and damage brand perception when done poorly. The difference comes down to three things: timing, offer, and execution.
When exit intent works vs. when it backfires
Works well: Ecommerce (discount code for cart abandonment), SaaS (offer a content download instead of a signup), lead gen (softer conversion than the main CTA — "Not ready? Get the free guide instead").
Backfires: When the popup blocks content visitors are actively reading. When it appears on every page, every visit. When the offer is irrelevant to the page context. When it takes over the entire screen on mobile with a tiny close button.
Best practice: Show once per session, not per page. Offer something genuinely valuable, not just "Wait! Don't go!" Make the close button obvious. Don't use exit intent on pages where the visitor is mid-task (checkout, forms). And never, ever use exit intent on mobile as a full-screen takeover.