The four title fields, named
Squarespace splits what most platforms call 'the title tag' across four fields. Site Title lives at Settings > General and represents the brand. Page Title lives at Page Settings > SEO and represents the page-specific SEO string. Browser Tab Title lives at Page Settings > General and represents the literal browser tab label (often also the nav-menu label, depending on template). The Title Format template at Settings > SEO Appearance is the join rule that combines Page Title and Site Title into the rendered <title> tag. The four are independent — but the template ties them together at render.
Site Title vs Page Title, in practice
Site Title is your brand: short, consistent across every page, set once at Settings > General. Page Title is what changes per page: descriptive of the page's primary topic, aligned to the query you're chasing, 30-50 characters once you account for the Site Title appendage. The template at Settings > SEO Appearance is the join rule that decides whether the final title reads 'Page Title | Site Title' (default) or 'Site Title | Page Title' or just 'Page Title' alone.
The Title Format template, decoded
Settings > SEO Appearance > Title Format is the sitewide rule that controls how Squarespace joins Page Title and Site Title. The available variables are %s (Site Title), %p (Page Title), %c (Collection), and %i (Item) — the platform documentation lists them. The default '%p | %s' renders 'Page Title | Site Title'. Setting it to '%p' alone removes Site Title from the title entirely; Google may still add it from the URL in some cases.
Character budget: 50-60 characters for the joined title
The SERP-display sweet spot for titles is 50-60 characters or roughly 600 pixels on desktop. Squarespace's own SEO checklist recommends the same range. The budget refers to the final rendered <title> tag — Page Title plus Site Title appendage via the template — not to Page Title alone. If your Site Title is 'Hollis Coastal Interiors' (24 characters), the template default appends ' | Hollis Coastal Interiors' (27 characters), leaving 23-33 characters for Page Title before truncation.
The Browser Tab Title pitfall
Browser Tab Title is a separate field from Page Title. On most Squarespace 7.1 templates, Browser Tab Title also doubles as the navigation menu label — set it to the SEO-optimised string and the nav menu shows the long string instead of a clean 'Home' or 'About'. The fix is the field separation: Browser Tab Title = natural nav label (e.g. 'About'), Page Title = SEO-optimised string (e.g. 'About Hollis Coastal Interiors | Maine coastal interior design'). Squarespace's documentation calls out this split, but it's easy to miss when working through the SEO panel quickly.
Google rewrites about 61% of titles — and what that means for you
Zyppy's 2022 study of roughly 80,000 title links found Google rewrote 61.6% to some degree. Google's own documentation confirms the algorithm uses the page's <title> as the primary signal but draws from H1, anchor text, and on-page content when judged useful. The owner's lever: write a clean, accurate, query-aligned title; set the H1 on the page to the same phrasing or a close variant; let Google blend signals. Don't fight rewrites by re-testing daily — the rewrite is often equal or better than your version.
The pattern that reduces title rewrites in field tests
The pattern: write Page Title as a direct, scannable, query-aligned phrase under 50 characters; set the on-page H1 to the same phrasing or a near-paraphrase; align the first paragraph (the AnswerBlock lead) to the same query. When title, H1, and lead paragraph all sing the same song, Google has fewer alternatives to choose from and rewrites less. When they conflict — say, an SEO title chasing one keyword and an H1 written for a different audience — Google picks whichever it judges most query-aligned, and the result is unpredictable.