With Archive.org being messed with, if I might recommend this:
An open source tool to download entire websites
Remember, if you have windows 10 or 11, Microsoft may be able to deploy updates to “suggest” certain files be deleted from your computer, without your knowledge or explicit consent, so move archives to storage that isn’t connected to the internet.
If you have working towers with extra sata ports and unused usbs, hook up SSDs for storage. HDDs can be written and stored long term without needing power for several years