Schema markup is now critical with Google’s latest race to identify physical businesses in the most recent algorithm changes.
Schema markup is what SEOs like to call “micro-data”. Once you add this micro-data to your website, it creates an enhanced view of your content that can be shared across multiple channels by your visitors.
One main advantage is the effect on search engine crawlers. Search engine crawlers see your micro-data as valuable information that can be used to measure relevance, authority, social signals and so forth.