Your records and our measurement

What stays on your device

Journal entries, products, amounts, dates, sites, observations and questions stay in the browser. Saving is off unless you choose it. The reading list uses a separate storage key and does not build a combined health profile. Files are generated locally for you to download or print.

What optional tool measurement sends

The tool pages omit the ordinary Google Analytics and Ahrefs SDKs. A separate optional checkbox enables an isolated analytics frame for the current page session. Its event allowlist is view, start, valid result, download, export and public resource. Every event uses the same generic Tools page location and one broad family: calculation, recordkeeping, reference or resources.

The frame receives no input values, product names, symptoms, dates, journal records, chosen research question, selected studies, URL query or fragment. It cannot access the parent document. Advertising consent remains denied. Your explicit per-page opt-in enables generic analytics events inside a sandbox on our existing separate Cloudflare origin. It cannot read this main site’s document, journal or reading-list storage. The separate origin may use its own session cookies; its supplied random client identifier resets on each page load. Network and browser metadata can still reach Google when you enable it; browser blocking may prevent delivery.

What no one should infer from a counter

These are activity events, not unique patients, medication use, clinical outcomes or verified treatment adherence. A successful result event records only that arithmetic produced an output. Return-use and search effects require future observation.

Control and deletion

Turn measurement off to stop further activity events from this page. Use the journal’s clear control to remove its records, or the reading list’s separate clear control for saved references. Clearing one does not clear the other. Downloading a file creates a copy outside browser storage; manage those copies yourself.

Ordinary editorial pages

Existing editorial analytics remain on ordinary pages. Links into the private tools use a full document transition so those scripts do not remain attached to the tool interface. External source links use the tool page’s no-referrer policy.