If your main website is hosted with Wordpress, Squarespace, Wix or some other provider, it's fairly easy to integrate a Simplero Signup flow onto that site.
Then users can fill out a form using your Wordpress design and be added to your Contact list in Simplero.
Here's how it's done:
Select Marketing >> Landing Pages >> Create a new landing page.
Create a New Signup Form and select Embedded Form
Follow the steps in this guide to create your Embedded Form
On the Content tab, scroll down to the Embed Code (required) section and copy it to your clipboard:
Paste the Embed Code into a Script or source code section on your external website.