Offer a first-order discount in exchange for an email

When to use it

When the page captures no email, or asks with a "join our newsletter" line that offers the visitor nothing.

How to run it

1. 1Ask on exit intent or after real engagement, never on arrival. Compare total orders, not list growth.
2. 2Run the same offer as an inline block or a dismissible bar, and move to an overlay only if the quieter version underperforms.

Why it works

Raise the perceived value of acting

A first-order discount makes a browsing visitor contactable, and you only pay it out if they buy. Google treats intrusive mobile interstitials as a ranking problem, so how and when the ask appears matters more than the offer.

Source: Google intrusive-interstitial guidance; Recart 10,000-popup field study