What is a Social Signal?
Social signals can add credibility to a webpage. These consist of likes, shares, and other social indicators that suggest the usefulness or popularity of a webpage for search engines.
More About Social Signals
With the advent of social media and the many new ways to engage with posts and pages, some of these interactions are measured and can influence organic search visibility. These include likes, shares, and other engagement metrics.
The act of liking or sharing content from a website suggests there is valuable information on that page. Algorithms take this user engagement into account when determining the most relevant and valuable pages to display.
Imagine two websites that rank well for a particular set of keywords. Both are integrated with social media in some manner, but one just has a few likes and shares, while the other has hundreds. Search engines are able to recognize the value in those interactions and boost the rankings of the page that has more likes and shares.