My website got deleted

The Wayback Machine shows nothing on your site. I’m not surprised as last I checked the browser security system prevents the Wayback Machine from crawling your site. And even if it didn’t, that’s something that has to be initiated manually, not something that InfinityFree or iFastNet does on their own accord. Also, snapshots from the Wayback Machine generally only covers the frontend of websites, (and sometimes assets like images or videos) so any backend PHP code of your SSH key client still wouldn’t be saved.