Pop ups are claimed to increase conversion rates of newsletter signups, and actually, they do.
But people hate them.
You may increase your newsletter signups from 0.1% to 1%, but you're going to REALLY anger 99% of the people visiting your site. This is a poor tradeoff in usability.
Search engines are acutely aware of this, and have been penalizing sites that have pop-ups/interstitials on the first visit to a website:
Alternate Solutions
Adding a call to subscribe on exit is one potential solution.
You could also create a pop-up sign up for when a user intentionally clicks on a sign up button (not by tricking them into clicking anywhere), but this is unnecessarily complex. Better to just embed the sign up form right into the page itself.

Comments closed. If you have any questions about your site and are a customer, please submit a support ticket through the Feast Plugin. For any pre-sale questions please email [email protected]