HTTrack is a great backup tool, and can be used for a variety of useful website copy purposes. If you want to copy a webiste, HTTrack Website Copier is your #1 free solution to copy a website, guaranteed.
Don’t be a fraudulent webmaster. Always be sure to create, write and develop your own content, or content that you have the rights and permissions to share freely.
HTTrack is a free (GPL, libre/free software) and easy-to-use offline browser utility. It allows you to download a World Wide Web site from the Internet to a local directory, building recursively all directories, getting HTML, images, and other files from the server to your computer. HTTrack arranges the original site’s relative link-structure. Simply open a page of the ‘mirrored’ website in your browser, and you can browse the site from link to link, as if you were viewing it online. HTTrack can also update an existing mirrored site, and resume interrupted downloads. HTTrack is fully configurable, and has an integrated help system. WinHTTrack is the Windows 2000/XP/Vista/Seven/8 release of HTTrack, and WebHTTrack the Linux/Unix/BSD release.
Source: HTTrack Website Copier – Free Software Offline Browser (GNU GPL)