Frontmatter is a way of tagging content with extra data that are not part of the main content of the page. This data allows content creators to control how their content is displayed, or to have content appear differently depending on certain conditions.
One of the most common uses for frontmatter is for setting up metadata for webpage content. Metadata helps search engines find the best relevant and related content for the user. By tagging content with the appropriate metadata, and enabling search engines to read this, you can ensure your content is presented in the best possible way.
Frontmatter is often used in blogs and other types of websites, where titles and descriptions need to be associated with content. It is also used in templating engines like Jekyll and Hugo, to control the way a page is displayed and how the content is formatted.
Frontmatter is written in a format called YAML (YAML Ain’t Markup Language), and each piece of metadata is written in a key/value format. For example, a title might be written like this:
title: This is an example title
The key is the title, and the value is the entire line after the colon.
Frontmatter is definitely a valuable tool if you are looking to improve your website’s visibility and make content more engaging to your users. To learn more about frontmatter, take a look at this article: https://www.digitalocean.com/community/tutorials/how-to-use-front-matter-in-jekyll