comark/blocked-url · Keep local, private, tunnel, and preview URLs out of links

A link that works only on the writer's machine or for a while: localhost and *.localhost, 127.0.0.0/8, ::1, 0.0.0.0, private networks (10/8, 172.16/12, 192.168/16, 169.254/16, *.local, *.internal), file: URLs, tunnels (ngrok, *.trycloudflare.com, *.loca.lt), and deploy previews (Netlify's deploy-preview-42--site.netlify.app and Vercel's app-git-branch-team.vercel.app). A production *.vercel.app or *.netlify.app host is fine.

Comark turns a bare URL in prose into a link, so Open http://localhost:5173 is reported too. Write it as code when the address is the point. The rule is on by default: links.block adds patterns, links.allow reports every host it doesn't list, and links.skip lets a link through.

Incorrect

The new pond map is up at http://localhost:5173/ponds.

lint-comark example.mdexample.md:1:27 comark/blocked-urlThe link to http://localhost:5173/ponds on line 1 points at the writer's own machine, so it opens nothing for anyone else.Link the deployed page, or write the address as code (` http://localhost:5173/ponds `). Comark turns a bare URL in prose into a link.✖ 1 problem

Correct

The new pond map is up at [example.com/ponds](https://example.com/ponds). Before the deploy, it ran at `http://localhost:5173/ponds`.

lint-comark example.md✔ No problems