Jekyll is a static site generator written in Ruby that allows you to create simple, fast, and secure websites without the need for a database.

Blog websites feature posts written by one or more authors, organized by categories and tags, with a section for comments and archives sorted by date or topic. Additional features may include search bar, social media sharing, subscription or RSS feed, about and contact pages, and visual content.

A template or theme refers to a pre-designed layout or structure that provides a basic framework for building a specific type of application or website. It typically includes good design, placeholder content and functional features, allowing developers to customize and fill in the details according to their specific needs.