I have a website hosted on GitHub Pages.
When I first attached a custom domain from GoDaddy, the website served and worked perfectly across devices.
However, over time, the website stopped serving. At first, the website would not serve over Wifi, but would on cellular data, but then two weeks later it stopped serving on cellular data too with error "Too many redirects."
I tried adding Cloudlfare protection-- https://blog.cloudflare.com/secure-and-fast-github-pages-with-cloudflare/ , to check if the issue was bot traffic, but this didn't do anything either.The domain in question is portfolioperch.com
GoDaddy support says that it worked for them, and that it is a ISP issue.