Privacy Policy: Sonde A: AI Visibility Checker

Last updated: 2026-07-11

Sonde A: AI Visibility Checker ("the extension") is a Chrome extension that checks whether your brand is cited in Google AI Overviews, ChatGPT, and Perplexity answers. This policy describes exactly what the extension's code does with your data.

Data collected

• Brand names you configure. Stored in chrome.storage.local on your device only (src/lib/storage.ts, getBrands/saveBrands). Never transmitted anywhere.
• Scan results. Each time you run a scan, the extension records the page URL, the detected AI answer source (Google AI Overview, ChatGPT, or Perplexity), the search/prompt query text on that page, the cited domains found in the answer, and whether one of your brands was matched (src/lib/types.ts ScanResult, written via appendScanRecord in src/lib/storage.ts). This history is stored only in chrome.storage.local on your device, capped at 2000 records (MAX_HISTORY_RECORDS), and can be exported by you as a CSV file (scanHistoryToCsv) or cleared from the options page. It is never sent to any server controlled by the developer.
• Monthly scan count, used to enforce the free-tier limit (10 scans/month). Stored locally in chrome.storage.local (STORAGE_KEYS.scanCountByMonth).

Data NOT collected

• No analytics or telemetry of any kind (no Google Analytics, no Sentry, no crash reporting).
• No account, sign-up, or email address is required or collected.
• No browsing history is collected outside of the specific pages you actively run a scan on (google.com/search, chatgpt.com, perplexity.ai).
• No cookies are read or set by the extension.
• The extension does not have a general <all_urls> host permission: it can only run on the four domains listed in manifest.json (host_permissions).

Third parties

• Selector configuration (data only). On each scan, the extension may fetch a small JSON file of CSS/text selectors from https://sebastian-code-automation.github.io/ducens-watchtower/sonde-a-visibility/selectors.json (src/lib/selectors.ts, loadSelectorsConfig). This request carries no user data: it is a plain GET used only to keep the extension working when a site's HTML changes, and the response is validated before use. If it fails, the extension falls back to a selectors file bundled with the extension.
• ExtensionPay (extensionpay.com). The extension uses ExtensionPay as a third-party payment processor to sell the one-time Pro upgrade and to check whether your installation has paid (src/lib/payments.ts). This involves your browser communicating with extensionpay.com (and Stripe as ExtensionPay's own payment processor) to open the payment page and verify paid status. The extension itself does not send your brand names or scan history to ExtensionPay, only what ExtPay's own library needs to identify your installation. See ExtensionPay's own privacy policy at https://extensionpay.com/privacy.html for what it collects.

Contact

Questions about this policy: sebastian.stephen.dominguez@gmail.com

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