The SEO Spider preview
Under the Preview macro category, we find the entries Snippets, Opengraph and TwitterCard.
Snippets are the page previews that we find on the Google results page and include the title, the URL and a description. Generally, search engines reward titles and descriptions of a certain length.
Opengraph and TwitterCard
The Opengraph and the TwitterCard are the equivalents of the snippets on Facebook and on Twitter, namely the structured previews of the page that appears when we link it to these social networks.