AI Product Index / sitemap.xml published
It is the only machine-readable statement of what pages exist. Without it a crawler discovers your site by following links, which means anything not linked from the home page is effectively unpublished.
Publish /sitemap.xml and reference it from robots.txt with a Sitemap: line.
<?xml version="1.0" encoding="UTF-8"?>
<!-- /sitemap.xml -->
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url><loc>{{ORIGIN}}/</loc></url>
<!-- one <url><loc> per page you want read -->
</urlset>
Free, no signup, same endpoint that produced every grade on the leaderboard:
curl "https://index.percall.dev/api/score?url=https://your-site.example"
It returns the letter grade and every check by name with pass/fail. The
$0.05 call at POST /api/audit adds why each one failed and a
snippet with your origin already in it.