An opt-in is the little sign-up box that turns a one-time website visitor into someone you can stay in touch with! Make four quick decisions here and watch your box take shape.
A clear offer gets far more sign-ups than "sign up for updates."
Three short lines. Watch the preview update as you write (the fun part!).
Every extra box costs you sign-ups, so ask for the least you need.
Put it where people already are. Pick every spot.
Here's your box, just as a visitor will see it. Below it are the details to hand whoever builds it. You'll set up the form itself in your website builder (the Bonus Tutorials walk you through Squarespace and your email tool).