Cool, link check is working after #979. Thanks @casperdcl !

As noted in #974 (comment), the link check is currently crashing, preventing the CI checks here from completing ATM. Otherwise this is ready for review.

ok finally got around to reviewing this. Will try to re-fix in a new PR. Not sure why you re-ordered links in exclude-links.txt - probably best to keep sorted.

I think I just sorted them alphabetically by domain name. If you leave a PR review here I'll address in a separate one.

hmm you mean you strip http(s):// before sorting? Seems unnecessarily inconvenient. Will be fixed in #997 anyway...

And www or other subdomains. But no, whatever is easy, as long as we all know what the sorting is. Piping through GNU sort is fine. Thanks

p.s. I don't assume the file supports comments (and blank lines)? I.e.

# This is a list of URLs to exclude from scripts/...
# It's ordered with GNU `sort`.

http://127.0.0.1/
...

I was nearly going to write comments. They should be fine to add (though strictly speaking aren't ignored yet)