This web site is not currently very mobile friendly. It predates iPhones and other mobile devices for most of its content.
Maybe I can improve on this (with reasonable effort), but I'm not sure (I don't even have a smartphone to test with).
Main pages available here:
(fragment of the Mandelbrot set)
Update August 2021: The server hosting this web site was down for two days (early on the 28th to noon on the 30th for this site) in what appears to be a sabotage attempt by a service provider's employee: many servers (including some holding backups) were reinitialized. Email was also broken during this time.