Are you aware of any service similar to Gist or Pastebin that just serves an HTML page at my own subdomain, as fast as your typical CDN, and can manage <1M requests per day reliably?
....as in nothing else required, just ONE HTML file (which then loads everything else from S3 or something).
I'm also interested in a service that serves one HTML file + manages an associated domain/DNS.
Have a look at gist.io.
You publish a gist in Markdown, then visit it at
http://gist.io/gist-id
in HTML.Development of gist.io has been ceased for a long time. It only support the discontinued all digits url syntax of gist.github.com.
draft.sx is a fork, and it supports the new url syntax (hex string) of gist.github.com