Mirror your environment
Before testing a system against a recommended security setting, checking for vulnerabilities, or validating a vulnerable system through exploitation, it may make sense to clone your system for testing purposes, rather than testing the real system. Best practices are replicating everything from the hardware hosting the web application to all content because vulnerabilities can exist in all technology layers. Testing a cloned environment will give the Penetration Tester freedom to execute any degree of attack while avoiding negative impact to operations. Although most people cannot mirror the exact environment, it is usually possible to set up a virtual environment with the same functionality.
HTTrack
HTTrack is a free offline browser utility. HTTrack allows you to download a website from the Internet to a location directory, build all directories, capture HTML, images, and other files from the server and store on your computer. You can browse the cloned website link...