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Tools

Tools that run on this site

Each one does one job and says on its page what it can't tell you. The command-line tools we publish are on open source.

  • Instant audit

    Fetches one URL from our server, reads the raw HTML and robots.txt, and lists what stops answer-engine crawlers from reading it.

  • hreflang codes

    Builds an hreflang value from the ISO language and region lists, and finds the values that break Google's documented format. Runs in your browser.

  • Citation sample size

    Shows the confidence interval around a citation share, and how many runs a question panel needs before a change stands out from noise. Runs in your browser.