Learn the essentials for creating actionable pop-up and overlay CTAs that lead website visitors to action and conversion using HubSpot’s (free) Lead Flow tool. Pop-up CTAs are a flexible, easy way to convert more of your website traffic. Many marketers avoid using pop-ups and overlays because they are afraid of annoying website visitors, but these forms and boxes can be just as successful (if not more) than any other call-to-action on your website. In fact, Sumo, an overlay software, analyzed over 1.7 billion pop-ups and found that they average a 3% conversion rate.