You can also use my browser extension [1] to quickly find the original version of the site in other places:

https://megalodon.jp/2019-1128-2050-51/https://firefox-repla...

http://cc.bingj.com/cache.aspx?q=url:https%3A%2F%2Ffirefox-r...

http://cache.yahoofs.jp/search/cache?c=ULQkH25vOxAJ&p=https%...

http://210.89.172.69/search2.naver?group=web&mtype=web_doc&w...

[1] https://github.com/dessant/view-page-archive