To incorporate a meta key phrase, click on the sphere and validate by pressing "Return". You can eliminate tags by clicking the cross. Canonical URLs are made use of in order to avoid duplicate information and to point to search engines like yahoo which happens to be the “authentic” site. https://addons.prestashop.com/ru/seo-natural-search-engine-optimization/31857--rich-snippets-json-ld-opengraph-seo.html