So I remember using JanusVR back around the time this video (https://www.youtube.com/watch?v=jva-855nLvM) came out, and I remember (and see in the video) that the officially endorsed hosing website was vrsites.com, which seems to be a site about A-Frame projects now. It seems many links have been killed, and I cannot tell if they got moved somewhere else or just deleted. The latter would be a horrendous loss of historical data, I genuinely feel sick thinking about it; so I won't and will instead hope someone has them all stored safely.
I then checked the Wayback Machine (web.archive.org) for saved instances, here's what I found with about an hour of skimming.
UPDATE: Just realised it was all saved on Vesta lmao. I'm so happy to figure this out.