It will download the last version of every file present on Wayback Machine to `websites/example.com/`. It will also re-create a directory structure and auto-create `index.html` pages to work seamlessly with Apache and Nginx. URLs and links structure are preserved as much as possible.
You may want to supply a specific timestamp to lock your backup to an older version of the website. Wayback Machine Downloader will then fetch only file versions on or prior to the timestamp specified: