Legal

Privacy Policy

Plain-English explanation of what datafairy collects, how it's used, and what we don't do with it.

Last updated: March 2026

What datafairy does

datafairy is a Chrome extension that monitors, records, and analyzes dataLayer events, GA4 hits, and GTM containers on websites you actively inspect. It is a developer tool — it only operates on the tab you open it on, and only when you interact with it.

What we collect and why

Google account (sign-in)
When you sign in, we request your Google account email address and display name via OAuth. This identifies your account so your data is kept separate from other users. We do not request access to your Gmail, Drive, or any other Google service.

dataLayer events and network hits
The extension reads dataLayer pushes and intercepts GA4/GTM network request URLs on the tab you are inspecting. This data is processed locally in your browser and, when you run an audit, sent to Anthropic's Claude API to generate analysis. We do not permanently store the raw event data from pages you inspect.

Crawl results
When you run a site crawl, the extension visits pages on the domain you specify and collects dataLayer and network data from each page. Results are used to generate your audit report and are not retained on our servers after the session.

Waitlist signups (website only)
If you submit your email on datafairy.ai, that email address is stored in our database (Firebase/Firestore) so we can contact you about early access. We do not sell or share this with third parties.

What we do not collect

  • We do not track your general browsing history
  • We do not read page content outside of analytics-related signals (dataLayer, GA4 hits, GTM)
  • We do not collect passwords, payment information, or other sensitive personal data
  • We do not sell your data to anyone

Third-party services

datafairy uses the following third-party services:

  • Anthropic Claude API — audit results and dataLayer data are sent to Anthropic's Claude API for AI-powered analysis. Anthropic's privacy policy applies to data processed by their API.
  • Google Firebase / Firestore — used to store account data and waitlist signups.
  • Google OAuth — used for sign-in. Google's privacy policy applies.
  • Google Analytics 4 via GTM — we use GA4 on this website (datafairy.ai) to understand how people find and use the site. Standard analytics data (page views, referrers) is collected. No personal identifiers are sent.

Data retention

Session data (crawl results, recorded events) is held in memory during your session and discarded when you close the panel. Account information (email, display name) is retained while your account is active. Waitlist emails are retained until you ask to be removed.

Your rights

You can request deletion of your account data or waitlist email at any time by emailing us. We will respond within 30 days.

Changes to this policy

If we make material changes, we'll update the "last updated" date at the top of this page. Continued use of the extension after changes constitutes acceptance.

Contact

Questions? Email us at [email protected].