duolingo.com

Check breakdown

• AI bot access (robots.txt)OK
  • 13/13 known AI bots are allowed by robots.txt.
• llms.txt presence and qualityIssue
  • /llms.txt found (11569 characters).
  • Missing an H1 title at the top of the file.
  • It contains no markdown links to specific pages/resources.

  How to fix it: Improve llms.txt: an H1 with the site name, sections per topic area, markdown links to key pages.

• Structured data (Schema.org JSON-LD)Issue
  • No JSON-LD block found on the homepage.

  How to fix it: Add at least one Organization or WebSite JSON-LD block in the homepage head.

• Meta title/description and Open GraphOK
  • <title> present but not an ideal length (8 characters, ideal 10-60).
  • meta description present with a good length (148 characters).
  • og:title present.
  • og:description present.
  • og:image present.
• XML sitemapOK
  • Sitemap reachable with 104 URLs.
  • Dichiarata correttamente in robots.txt.
• Content freshness (sitemap lastmod)Not applicable
  • The sitemap has no <lastmod> tags: freshness cannot be assessed.

  How to fix it: Add <lastmod> to every sitemap URL to signal the update date.

• Content structure (answer-first)Needs work
  • The text extracted from the homepage is too sparse for a reliable assessment.
• Brand identity consistencyNot applicable
  • At least 2 crawled pages with content are needed to assess cross-page consistency.

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