alt Hacker NewsNot one of them links to the actual well-known resource, only pdf specifications. And several I picked randomly leads to dead ends.
Here's one I could find: https://accounts.google.com/.well-known/openid-configuration
But how does one even find this?
well-known is for programmatic access, it either namespaces something you’re told to look for (e.g. various types of domain markers) or it lets you discover a feature / endpoint.
In the latter case you just probe, for instance if you’re a password manager and you have a password for site A you hit A/.well-known/change-password and if they returns something you can surface a change password link to your user.
The one you found is for OIDC provider discovery (https://openid.net/specs/openid-connect-discovery-1_0.html#P...) so someone tells you they want to log in via Google, you hit that endpoint, and it lets you setup Google as an oidc provider rather without needing to hard-code providers. Even if you just want to support Google as a provider, you hit that and you get the entire configuration rather than have to hunt down the same information in the docs.