Bits of code added to a web page that help search engines understand the content of the page. With better understanding comes the ability to format content when it appears on the search engine results page (SERP). Photos of a recipe appear next to its description, for example, or a list of upcoming events is added to the results blurb of a concert venue’s website. Schema markup generate featured snippets on Google’s SERP.

The 3 Things To Avoid When Emailing Your List
When you decide to have an opt-in list, it is not just a matter of sending your subscribers your promotional newsletters or catalogs.