[gosub]

my strategy would be diversification: link + archive.org + archive.is + local copy + github/gitlab copy

worrying about linkrot, some years ago I wrote a little local webserver that took a link via a bookmarklet and saved a page in multiple formats:

    - html with wget -archive | tar.gz
    - pdf with wkhtmltopdf
    - txt with links
    - png with firefox --screenshot