User-agent: *
Disallow: /wp-admin/
Disallow: /trackback/
Disallow: /xmlrpc.php
Disallow: /feed/
Allow: /wp-admin/admin-ajax.php
Disallow: /pdfs/ # Block the /pdfs/directory.
Disallow: *.pdf  # Block pdf files. Non-standard but works for major search engines.
Disallow: *.pdf$
Sitemap: https://www.hlc.org/sitemap_index.xml