Keep records private.

The provider action-plan builder keeps entries in page memory. It does not submit them to our server or save them in browser storage. Refreshing clears them. Exported files and printed copies are your responsibility.

The email-domain checker sends the domain to our Worker, which queries Cloudflare’s public DNS resolver. Do not enter customer records or secrets. The service uses an IP-based request limit. Cloudflare may process request/network data as infrastructure provider; we do not promise that infrastructure processing leaves no logs.

This release has no advertising pixels, newsletter signup or third-party analytics script. Aggregate Cloudflare traffic measurements may be available to the owner. Ordinary links to Cirlet can include a resource-source parameter; never place personal information in such links.

Contact links open your email application or Cirlet’s existing inquiry flow, governed by that destination’s handling. Public resources are educational and do not create a monitored security service.

Published October 22, 2026. Privacy questions.

Useful-action counts

When your browser permits measurement, we send a fixed action name, a permitted resource path and a broad source category to our own Worker. No entered domain, worksheet answer, email, full referrer, persistent identifier or cookie is included in these action records. We honor browser Do Not Track and Global Privacy Control. Cloudflare processes infrastructure metadata; its short-retention Worker logs are not anonymous unique-person analytics. Repeated actions, bots, failed file saves and unattributed visits limit interpretation. Internal checks are marked QA and excluded from demand.