Is it just me, or does this website go down a lot?
A website is hosted on a server, and most of the time when a site goes "offline" it's because it's connection to that server is disrupted. So you would be getting a Cloudflare or browser error saying it can't connect to the site.
If the site is loading up, but you can't see anything just the background, it means the site is connecting to the server but the issue is loading the other elements of the site. This is mainly due to internet connection or something in your browser causing it to struggle to load the elements.
We collect data on a user's browsing experience to see if we can fix bugs/loading issues (most sites do this). I can try checking the back-end where the site records loading data and see if maybe the server is loading the website slowly, but counting I don't see anything I assume it might be on your end.