# Markdown alternate link

Check id `markdown-link-alternate` · Readability · runs in the free CLI · pre-release, in calibration

**What we look for.** Whether pages point to their Markdown version with a rel=alternate link or an HTTP Link header, and whether that target serves Markdown.

**Why it matters.** It tells an agent the clean version exists before it parses the HTML.

**How to pass.** Add <link rel="alternate" type="text/markdown" href="…"> to each page that has a Markdown version.

Run it: `npx backwatch your-site.com --pillar readability` and find `markdown-link-alternate` in the report.