How to change your Squarespace site title
What you’ll need: A Squarespace 7.1 site (it doesn’t have to be published yet)
How to change the site title in Squarespace:
From any page on your site, enter edit mode by clicking edit on the top left hand side of the site preview
Hover over your site header and click on the edit site header button that appears
Select the site title & logo option
Enter the text you want to use for your site title
When you are all done, hover over the word done on the top left hand side and select save
Important info: To display a logo instead of a title, follow the steps in this tutorial to upload a logo to your Squarespace site.