You specify the key URL because the internet search engine might have problems pinpointing which one particular must be the key URL.  The following tutorial will show you the way to allow Canonical URLs in Prestashop one.five. Improve the indexing of one's Prestashop urls in Google. This module AUTOMATICALLY https://addons.prestashop.com/ru/seo-natural-search-engine-optimization/31857--rich-snippets-json-ld-opengraph-seo.html