Trova e correggi i link rotti

Interest question. In the catalogs of sites (clone Dmoz) all existing links are checked for errors. In Discourse, the links are in the body of the document ( They are not stored in a separate table?). I think that it is possible to create a link parser from the Discourse database in order to check their status using a third-party plugin. And in the countdown, display the status of “broken” links and the number of the post.