While IndieAuth does not support login via other sites, such as Twitter or Mastodon, IndieLogin does, and the services we’re going to be using use the latter, not the former.
In order to do this, the site author must mark-up their home page with
links to their social media profiles with the rel="me"
attribute, e.g.:
<link href="https://twiiter.com/jdoe" rel="me">
On each service listed, ensure there’s a link back to the site’s home page.
Supported services: