[encroach]

> they had archive.is blacklisted

What do you mean by this? Wikipedia actively encourages people to use archive.is links in citations:

https://en.wikipedia.org/wiki/Help:Archiving_a_source#Archiv...

[zahlman]

Well, it was last I checked, which may have been some time ago (I couldn't easily find the changes with the WikiBlame tool).

[A1vis]

That would be 7 years ago. It indeed was blacklisted on 2014 but restored on 2016.