You specify the key URL because the internet search engine can have trouble determining which 1 needs to be the principal URL.  The following tutorial will teach you ways to allow Canonical URLs in Prestashop one.5. Increase the indexing within your Prestashop urls in Google. This module AUTOMATICALLY provides, https://addons.prestashop.com/pt/seo-referenciamento-natural/31857-rich-snippets-automaticos-json-ld-opengraph-seo.html