--- title: Configuration permalink: /docs/configuration/ --- Jekyll gives you a lot of flexibility to customize how it builds your site. These options can either be specified in a `_config.yml` file placed in your site’s root directory, or can be specified as flags for the `jekyll` executable in the terminal. * [Configuration Options](/docs/configuration/options/) * [Default Configuration](/docs/configuration/default/) * [Front Matter Defaults](/docs/configuration/front-matter-defaults/) * [Environments](/docs/configuration/environments/) * [Markdown Options](/docs/configuration/markdown/) * [Liquid Options](/docs/configuration/liquid/) * [Webrick Options](/docs/configuration/webrick/) * [Incremental Regeneration](/docs/configuration/incremental-regeneration/)