Backup / Download complete Website

https://www.gnu.org/software/wget/manual/wget.html

wget --mirror --page-requisites --html-extension --convert-links http://www.example.com

Advanced

wget --mirror --no-clobber --page-requisites --adjust-extension --html-extension --convert-links --restrict-file-names="windows" --no-parent --max-redirect 0 http://example.ullright.org/page/homepage