XKCD's had a tongue-in-cheek comparison of the apparent authority of information carried by different file formats, in its "File Extensions" comic:
https://xkcd.com/1301/
Similarly, I'm wondering what are people's general at-a-glance estimation for the likelihood of useful or authoritative information contained in a link of the following categories commonly seen on HNews?
*.medium.com
*.substack.com
*.pages.dev
*.github.io
other git-provider pages
traditional blog providers
custom domain