ICYMI: Google's secret thumbnail formula: schema.org and og:image both count: Google today clarified it uses both schema.org markup and the og:image meta tag to select image thumbnails in Google Search and Discover, updating its official documentation. https://ppc.land/googles-secret-thumbnail-formula-schema-org-and-og-image-both-count/ #Google #SEO #DigitalMarketing #SchemaMarkup #OpenGraph