Privacy Policy

Google account identity

When you sign in, the extension authenticates your Google account via OAuth and Firebase Authentication. Your display name, email address, and profile photo are used to show who is signed in. This information is not stored by Checked4AI beyond your browser session.

Google Doc revision history

When you open the Checked4AI viewer, the extension calls the Google Drive API to fetch the revision history of the current document. This includes the text content of each revision so the playback animation can be reconstructed. Revision data is stored only in your browser's local storage (chrome.storage.local).

Document text — AI authorship check

If you use the AI Authorship Check feature, the extension sends the text content of the document to OpenAI's API (ChatGPT) to estimate whether it was written by a human or an AI. This happens when you explicitly click "Scan" or "Check this page for AI," or automatically when you open the replay viewer as a Pro subscriber (the AI Content Check). The text is not stored by Checked4AI after the API call completes.

Screenshots of the active tab

When you trigger the AI check from the extension popup, the extension captures a screenshot of the currently visible tab and sends it to OpenAI's API (ChatGPT) for analysis. The screenshot is not stored by Checked4AI after the API call completes.

Revision playback only

Revision history is used solely to render the character-by-character playback animation in the viewer.

AI authorship results only

Document text sent to OpenAI is used solely to return an AI likelihood score and brief reasoning displayed to you inside the extension.

No secondary use of document data

Document content, revision history, and AI check results are never used for advertising, analytics, profiling, model training, or any purpose beyond the features described above.

Google (Drive API + Firebase Auth)

Revision history is fetched from Google's servers using your OAuth token. Sign-in is handled through Firebase Authentication with Google as the identity provider. Google's privacy policy governs their handling of that data: policies.google.com/privacy

OpenAI API (ChatGPT)

Document text is sent to OpenAI only when you explicitly trigger the AI Authorship Check. OpenAI's privacy policy governs their handling of that data: openai.com/policies/privacy-policy

Stripe (payments)

Pro subscriptions are billed through Stripe. Checked4AI never sees or stores your card details; Stripe's privacy policy governs their handling of payment data: stripe.com/privacy

Checked4AI backend (checked4.ai)

AI authorship checks are proxied through Checked4AI's own backend at checked4.ai. Your Firebase authentication token is used to verify your identity; the document text or screenshot is forwarded to OpenAI server-side and the result is returned to you. Checked4AI does not store the content of these requests.

Document data stays in your browser

Cached revision entries and document text live exclusively in your browser's local storage. Document content is never stored on any server operated by Checked4AI.

Account and usage records

To enforce free-tier limits and Pro access, Checked4AI's backend stores a small account record keyed to your Google account ID: how many free replay views and AI checks you have used, and your subscription status (including your Stripe customer ID if you subscribe). This record contains no document content. It is deleted on request — email support@checked4.ai.

How to clear your data

You can remove all stored data at any time by going to chrome://extensions → Checked4AI → Clear data, or by uninstalling the extension.

No browsing history

The extension only checks if the current tab is a Google Doc. It never reads your browsing history.

No location data

No GPS coordinates, IP-based location, or region data are collected.

No analytics or telemetry in the extension

The extension contains no usage tracking, crash reporting, or analytics SDKs. The checked4.ai website uses standard web analytics and advertising tags, described in the next section.

No data from other sites

The extension only activates on docs.google.com. It does not read content from any other website.

Google Analytics and Google Ads

The checked4.ai website (not the extension) uses Google Analytics to measure page visits and Google Ads conversion tracking to measure whether an ad click led to an install or subscription. These set Google cookies (such as _ga and _gcl_au) and may read a gclid parameter from the URL. Google's privacy policy governs their handling of that data: policies.google.com/technologies/partner-sites

Reddit Pixel and Conversions API

If you arrive from a Reddit ad, the website stores the rdt_cid click ID in a first-party cookie and loads the Reddit Pixel, which sets a _rdt_uuid cookie. Page visits and subscription conversions may be reported to Reddit, including a hashed form of your email address if you subscribe, so Reddit can attribute the conversion to the ad. Reddit's privacy policy governs their handling of that data: reddit.com/policies/privacy-policy

What these tags never receive

Analytics and advertising tags run only on checked4.ai pages. They never receive Google Doc content, revision history, AI check results, or anything from inside the extension. You can block them with a content blocker or your browser's tracking protection without affecting the extension.