Privacy Policy

1. Overview

TechScan AI is a Chrome extension that detects the technologies behind a website (frameworks, analytics, hosting, CMS, and more) and audits that site's SEO, security headers, and page weight, with results explained by an on-device AI assistant. It is built as a local-only tool: every detector, every scoring rule, and every AI response runs inside your browser, on your device.

This policy is written to be read alongside the extension's actual permissions and code not as boilerplate. If a claim below ever stops matching what the extension does, treat the code as authoritative and please report it.

2. Data we collect

TechScan AI's core scanning features do not require sending your data to us. There is no analytics pipeline, advertising account, or logging service collecting information about your browsing for those features.

The extension itself does read certain data locally, in your browser, in order to produce a scan report on your screen:

All of the above is processed in memory and/or written to the extension's own local storage sandbox (see Local storage & retention). None of it is sent to a TechScan server, because no such server exists to send it to.

3. Data we do not collect

To be explicit, TechScan AI does not collect, transmit, or have any mechanism to collect:

The current version of TechScan AI does not require an account or sign-in to use its core scanning features.

4. How scanning works

When you open the TechScan AI popup on a tab:

1. A content script already running on that page (injected per the manifest's content_scripts declaration) reads the page's DOM, scripts, meta tags, and globals, and builds a snapshot.
2. The extension's background service worker combines that snapshot with response headers and cookies it observed for that same page, runs its technology detectors and scoring rules, and produces a report.
3. The popup displays that report. It is discarded or replaced by the next scan when you close the tab or navigate away, subject to the short-lived session cache described in Local storage & retention.

The one outbound network request the extension can make is a request for the current site's own manifest.json (its web app manifest) issued to that site directly, the same way your browser would request any other resource from a page you're already on. This request never goes to TechScan, and no response from it is sent anywhere but your own browser.

No other network requests are made by the extension. It does not "phone home," check for updates outside Chrome's own extension update mechanism, or fetch remote configuration, code, or ad content at runtime.

5. On-device AI

The "AI" tab uses Chrome's built-in AI Gemini Nano, accessed through Chrome's native Prompt API (available on Chrome 138+ on desktop). This model runs locally on your computer, as part of the browser itself. TechScan AI does not operate an AI service, does not hold an API key to one, and does not proxy your data to any AI provider (including Google, OpenAI, or Anthropic).

The scan data used to generate an AI explanation the detected technologies and audit results for the current page is passed to the on-device model directly within your browser and never leaves it for this purpose. If your browser or Chrome profile doesn't support the on-device model, the AI tab explains that plainly rather than silently falling back to a cloud service; the rest of the extension continues to work normally either way.

6. Permissions explained

Chrome requires every extension permission to be declared up front. Here is what TechScan AI requests and, honestly, why:

TechScan AI requests the permissions required to analyze the website selected by the user. Each permission is used for a specific scanning or analysis function described in this policy.

7. Local storage & retention

• chrome.storage.local stores your light/dark/system theme preference. Persists until you remove the extension or clear it yourself; never leaves your device.
• chrome.storage.session caches the current scan's response headers and report in memory for the duration of your browser session, so re-opening the popup on the same tab is instant. This is cleared automatically when you close your browser and is never written to disk.

Uninstalling the extension removes all of the above, in line with Chrome's standard extension storage lifecycle. There is no server-side copy to delete because none was ever created.

8. Data sharing & third parties

TechScan AI does not share, sell, rent, or trade user data with third parties. Specifically, there are:

• No third-party analytics SDKs (no Google Analytics, no Mixpanel, no Sentry, no crash reporters)
• No advertising networks or pixels
• No external APIs called with your data, aside from the on-device Chrome AI model described in section 5, which runs locally and is not a network call
• No data brokers, and no use of your data for purposes unrelated to displaying the scan results you asked for

TechScan AI uses the information it accesses only to provide the scanning and analysis features described in this policy. It does not use this information for advertising, sell it, or transfer it to third parties.

9. Security

Because scan data itself never leaves your browser, the extension's core scanning features carry no server-breach risk for that data. Locally:

• The extension's code is bundled at build time and submitted for review as part of the Chrome Web Store listing. It does not fetch or execute remote code at runtime.
• All storage uses Chrome's own sandboxed chrome.storage APIs, isolated per extension by the browser.
• Permissions are used strictly for their stated purpose; the extension does not modify, inject content into, or block network traffic despite having read access to it.

10. Children's privacy

TechScan AI is a developer/webmaster-oriented diagnostic tool and is not directed at children. It does not knowingly collect information from anyone, of any age consistent with the rest of this policy so no age-specific data collection occurs.

11. Your choices & controls

• Uninstall anytime from chrome://extensions this removes all locally stored data along with the extension.
• Clear cached data by removing the extension's storage from chrome://extensions → TechScan AI → "Remove," or simply by closing your browser, which clears the session cache automatically.
• Verify our claims you can inspect exactly what the extension does at any time using Chrome's own chrome://extensions details view, or by contacting us (see Contact) with any question about this policy.

12. Chrome Web Store compliance

This policy is published in support of TechScan AI's listing on the Chrome Web Store and is intended to satisfy the disclosure requirements of the Chrome Web Store Developer Program Policies, including:

• Single purpose TechScan AI analyzes the currently viewed webpage and presents the resulting technology and technical analysis to the user. AI explanations help users understand the results.
• Permission justification every requested permission is mapped to a specific feature in section 6, with no unused or speculative permissions.
• No remote code all logic ships inside the extension package reviewed by the Chrome Web Store; nothing is fetched and executed at runtime.
• Accurate data disclosure the data-use categories declared in the Chrome Web Store listing reflect this policy: no category is used for a purpose other than the extension's disclosed function, and none is sold.

13. Changes to this policy

If TechScan AI ever changes what it collects or how it works for example, if a future version adds an optional cloud feature this policy will be updated first, the "Effective date" above will change, and the update will be described in the extension's Chrome Web Store listing and/or release notes. We will not silently expand data collection behind an unchanged policy.

14. Contact

Questions, concerns, or a claim in this policy that doesn't match what you observe the extension doing? Reach out: