Check a site's /llms.txt against the llmstxt.org format, or build a valid one from a short form. Enter a domain and this page fetches its /llms.txt and checks the file against the format published at llmstxt.org, rule by rule. The generator below turns a few fields into a file that already follows those rules. Free, no sign up, and no language model is called at any point.
One H2 section per block. Each line under it becomes a link: Title | https://url | optional note.