Com/widgets/blue/. But the exact same written content could be available at an ugly URL such as this when people apply product filters: case in point.com/widgets?color=blue Use a web site crawler. A website crawler is actually a tool which will scan your website and detect any lacking canonical tags. Whether or not https://addons.prestashop.com/es/seo-posicionamiento-buscadores/31857-google-rich-snippets-automatico-json-ld-opengraph-seo.html