CLI link checker
You can now check for broken links on your live documentation site directly from the Fern CLI with fern docs link check. The command scrapes every page on your published site, checks all internal and external links, and reports broken (404) and blocked (403) URLs along with the source pages where they appear.
This complements the existing broken-links rule in fern check, which validates internal links against your local YAML navigation tree. Use fern docs link check after publishing to catch live 404s and broken external URLs that local validation can’t detect.
