Squarespace is a content management system that allows you to create, design, manage, and host your site, as well as acquire a domain, all without writing a single line of code.
With this integration, you can automatically save new subscribers to your MailerLite account by using the default Squarespace newsletter signup block.
Head to Squarespace’s integration page and toggle the ON button under the Integration status section.
Select which group you want your subscribers to be added to and click Save.
Add a newsletter signup block to your website and double-click on it to get to the editor.
Click the form, then select the pencil icon at the top-left corner of the form to access its settings.
Head to the Storage tab, click Connect other services, and connect your Google Drive account. Name it and click Apply.
That's it! This newsletter form works on your Squarespace websites and saves new subscribers to your MailerLite account. Moreover, if you create pop-up forms on MailerLite, they will also be shown on your Squarespace website.