Web Distributed Authoring and Versioning (WebDAV) is an extension to the standard HTTP protocol that allows remote authoring commands, such as the ability to lock, upload, delete, and create content.
This content can be in the form of documents, images, objects, and more. While its popularity has declined with the rapid update of full CMSes and cloud storage platforms such as Dropbox, WebDAV still remains a very simple option to implement solutions.