This won’t work by design. The free hosting servers do not respond to pings.
I’ve checked and your site is also working fine for me. So this would strongly suggest a block on your internet. ISP’s are notorious for blocking free hosting domains. can you access the base domain (https://rf.gd)? If not, that would strongly support a whole domain block, rather than them blocking your specific sub domain.
It is, which is my proffered editor for building my website. But I didn’t know (until googling just now) you could host a VSCode project like this, I thought it was just a page emulating the look of VScode. (still very cool if that were the case)
It’s definitely just a VSCode like page instead of the actual editor. Many minor design inconsistencies with the original but I’m not gonna blame anything, still a pretty interesting design.