Use the correct Squarespace version
Squarespace’s current font-styling guide identifies its described controls as applying to version 7.1, with different settings for 7.0. Match the documentation to the actual site before changing styles. Keep a record of the current families and weights so a new pairing can be compared with a recognizable starting point.
Begin with the font pack
The official guide explains that sites use font packs for coordinated styling and that these packs use Google Fonts. A new pack can change fonts throughout a site. That is broader than replacing one heading. Inspect several representative pages before settling on a pairing for a content-heavy website.
Compare a content role rather than two isolated names
Try a heading, two paragraphs, a navigation label and a small caption together. As an independent composition exercise, compare DM Serif Display and DM Sans. Check the exact families available in the current Squarespace controls before using a suggested pair. These specimens do not certify the contents of every platform catalog.
Keep long titles and small screens in view
Use the longest article title and a realistic menu label when choosing weights. A strong desktop title may occupy several lines in a narrow layout. Change line length and spacing deliberately rather than adding more families to solve each exception. Use the website-font guide to consider reading roles beyond the heading.
Your questions, answered.
Do the same settings apply to Squarespace 7.0 and 7.1?
The official help distinguishes their font settings. Use the guide for the version in question.
Is a font pack only a change to one title?
No. Squarespace describes packs as a coordinated site-wide typography choice.
Sources & background
Sources supporting this page’s explanations. Practical examples are our editorial suggestions.