The Shopify rule: 60 recommended, 70 max
Shopify publishes two numbers for the title tag. Recommended: less than 60 characters. Hard maximum: 70 characters. The 60-character recommendation comes from Google's effective truncation width in pixels — most titles fit in the SERP at 50-60 characters depending on glyph widths. The 70-character maximum is Shopify's admin-enforced cap; the platform will not save a title longer than 70 characters. Anything between 60 and 70 saves but may truncate in SERPs depending on character mix and device width.
The store-name appendage math
Default Shopify themes auto-append the store name to non-homepage titles. Theme code renders the title as 'Page title – Store name' (or similar pattern depending on theme). A 60-character page title plus a 24-character store name plus the ' – ' separator (3 characters) totals 87 characters — well over the 70-char hard maximum. The platform allows this because the cap applies to the Page title field, not the full rendered title. The result: long full titles get truncated in SERPs, usually losing the store name at the end. Two fixes: shorten the store name to keep the math safe, or write per-resource Page title overrides that account for the appendage.
Where the title field lives in admin
Every editable Shopify resource — product, collection, page, blog post — exposes a Search engine listing panel in the resource editor. The Page title field lives at the top of that panel. The field is the override for the auto-generated theme title. Leave it empty and the theme uses the resource's storefront title (e.g. the product name) plus the store-name appendage. Fill it in and Shopify uses your override plus the appendage. The homepage is the exception: it has no per-resource panel because the homepage title is set in Online Store > Preferences.
Title tags and AI shopping engines
The title tag is the most extracted single field across both classical SERPs and AI shopping engines. ChatGPT shopping cards display the product title as the headline. Perplexity citations lead with the title. Google AI Overviews quote the title in product summaries. Shopify's AI optimization doc names 'clear, concise product titles' as the human-facing recommendation — and the same titles feed the AI extraction layer. The implication: title tags pull double duty. They earn the SERP click and they anchor every AI engine's product representation. Sloppy titles cost both.
The three anti-patterns to avoid
Three title-tag patterns predictably underperform on Shopify. (1) Keyword stuffing — 'Buy Linen Shirt | Linen Shirt Online | Best Linen Shirt 2026' (looks like spam, fails SERP CTR, ignored by AI engines). (2) Manufacturer-copy verbatim — Shopify's own keywords doc warns explicitly against this; rewrite manufacturer-supplied titles in your brand's voice. (3) Title that omits the product name — 'Comfort, Quality, Trust — Shop With Us' has zero search relevance because no one searches for those words together. Write titles that name the product, then differentiate, then add brand if budget allows.