Anyway, back on the earlier thing(tm), I know archive.org exists, and bless 'em for the work they do, but that shouldn't be an assumed thing.
Because:
A) They miss stuff (and gosh their remit is huge enough)
and, also importantly:
B) You shouldn't have needed what happened the other month to know that HOLY SHIT THEY CAN BE TAKEN OUT, but, you know... we have literal fucking proof they can be offlined so...
... download and save stuff for yourself, yo.