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Pyralis Labs

Privacy Policy

Last updated 23 September 2026.

What this site is

Pyralis Labs is a static site. It has no user accounts, no login, no newsletter form and no application database. We collect only what is needed to run the site and understand, in aggregate, which pages and tools are used.

Analytics: Google Analytics 4

When analytics is enabled on this site, pages load Google Analytics 4 (GA4), a service provided by Google. Google tags set and read cookies to identify unique users across browsing sessions (Google: cookies and user identification). GA4 gives us aggregate reports such as page views, rough location and device type.

On the AI crawler access checker we also send a small number of tool events (for example “audit submitted”, “robots.txt copied”, “intent changed”) so we can see whether the tool is useful. Those events carry only short labels such as the input mode or a check ID. They never include the URL or domain you check, the contents of your robots.txt or llms.txt, or anything you paste.

How Google uses information from sites that use its services is described at policies.google.com/technologies/partner-sites. You can block Google Analytics with a content blocker or Google’s opt-out browser add-on; the site and the tool work the same without it.

The AI crawler access checker

  • URL mode sends the address you enter to our Cloudflare Worker, which fetches that page plus the site’s public robots.txt, llms.txt, sitemap, /about and /contact. Results are cached in memory for a few minutes to avoid repeat fetches. Our Worker logs record a one-way hash of the domain, the status and timing — not the URL itself.
  • Optional checks (the crawler user-agent probe and the llms.txt link check) run only when you click them, and fetch only the public URLs shown on screen.
  • Pasted robots.txt drafts, pasted HTML and uploaded files are processed entirely in your browser and are never sent to us.
  • Recent audits are stored in your own browser (localStorage) so you can reopen them. Clearing site data removes them.

Contact

Questions about this policy: hello@pyralislabs.io.