This one is funny, because conservatives have used archive.is for some time to archive and mock left-leaning websites and some of them blocked archive.is in the past and still block archive.is today.
VOX for example returns a 0-sized page for archive.is. In the past VICE returned 404s to archive.is https://i.imgur.com/OnFdVpS.jpg
What I mean to say is that these services are useful but they are not faultless.