is an interesting solution to GP's issue, works better than httrack and can also pull down multiple timestamps of archived site

Disclaimer: I tried to get involved with ArchiveTeam to help get some websites that I care about properly archived and saved to The Way Back Machine, but they weren’t allowing new members to sign up. They were happy to talk to me about what needed to be done and one of their members set things up to archive everything that was available, but I wasn’t able to help in that process.