Privacy Policy

Last updated 2026-07-19

The short version

The Proof Stack is a content site. There are no accounts, no forms that require personal data, and we do not sell or share personal information. We use privacy-respecting, cookieless performance analytics by default. Optional marketing analytics and advertising tags set cookies only if you accept them in the cookie banner — and only when we have advertising campaigns configured at all.

What we collect by default

Vercel Analytics and Speed Insights collect anonymous, aggregated page performance and visit data. They do not use cookies and do not identify you.

Optional marketing cookies

If we are running ad campaigns, this site can load Google tags (GA4 and Google Ads) and the Meta Pixel. The Meta Pixel loads only after you choose “Accept” in the cookie banner; if you decline or never answer, it does not load at all, and when it is enabled it records page views only. The Google tags use Google Consent Mode: until you accept, they run in cookieless, consent-denied mode — they set no cookies and store no identifiers, but they do send anonymous, cookieless signals to Google that, like any web request, include your IP address and the page URL. No marketing cookies are set unless you choose “Accept.” We never send health information, purchase data, or identity data to these services.

To change your choice, clear this site’s cookies and local storage in your browser and reload — the banner will ask again.

Affiliate links

Product links routed through /go/ may be affiliate links; retailers may set their own cookies on their sites after you click. As an Amazon Associate we earn from qualifying purchases. Our recommendations are based on the evidence, not the commission — see how we evaluate.

Contact

Questions about this policy? Reach us via the contact page.