You specify the principal URL since the search engine could possibly have issues identifying which one particular needs to be the first URL. The subsequent tutorial will demonstrate how to allow Canonical URLs in Prestashop 1.5. The presented SQL scripts display how to add columns to your ps_product and https://allyourbookmarks.com/story19212180/the-ultimate-guide-to-automatic-hreflang-tags-canonical-tags-all-pages-seo