This a good suggestion with the caveat that entire domains can and do disappear: https://help.archive.org/help/how-do-i-request-to-remove-som...

That's especially annoying when a formerly useful site gets abandoned, a new owner picks up the domain, then gets IA to delete the old archives as well.

Or even worse, when a domain parking company does that: https://archive.org/post/423432/domainsponsorcom-erasing-pri...