How to fix duplicate title on PrestaShop

Steps for PrestaShop

1. For products: go to Catalog → Products → open a product → 'SEO' tab → edit the 'Meta title' field.
2. For categories: Catalog → Categories → open a category → 'SEO' tab → 'Meta title'.
3. For CMS pages: Design → Pages → open a page → edit 'Meta title'.
4. For the shop's default title settings: Shop Parameters → General → set 'Shop name' which is appended to page titles; ensure templates use {$meta_title} in the head.tpl Smarty template.
5. For bulk updates use a CSV import module or an SEO module (e.g. SEO Expert by PrestaHero) that lets you set title templates with dynamic product/category name variables.

What is duplicate title?

The title tag is the line of text that appears as the clickable headline in Google search results and in your browser tab. When two or more pages on your store share the exact same title tag, search engines — and shoppers — cannot easily tell them apart. A duplicate title means at least one page is missing its own distinct identity, usually because a template has been applied without customisation, a CMS generated a fallback title, or pages were accidentally copied without updating their metadata.

Google uses the title tag as one of its primary signals to understand what a page is about. Duplicate titles confuse its crawlers, can cause the wrong page to rank (or neither page to rank well) for a given query, and split ranking authority between pages that should each stand on their own. For shoppers, identical titles in search results make it impossible to choose between two links — reducing click-through rates and, ultimately, revenue. Google may also silently rewrite a duplicate title to something generic, stripping away any keyword targeting you intended.

See the complete Duplicate title guide for every platform and the full background.