Tag Inspector — Privacy Policy

Last updated: 26 May 2026

The short version Tag Inspector runs entirely in your browser. It looks at the page you're on to detect tracking tags. It does not collect, store, or send any data to us or anyone else. No accounts, no telemetry, no remote servers.

What Tag Inspector does

Tag Inspector is a Chrome extension built for developers and marketers. It detects tracking tags and cookie-consent platforms on any webpage you visit, and shows what it finds in a popup and side panel.

It currently identifies 12 tracking platforms — Meta Pixel, LinkedIn Insight Tag, GA4, Google Tag Manager, TikTok Pixel, Google Ads, Twitter/X, Pinterest, Snapchat, Bing UET, HubSpot, and Hotjar — along with cookie-consent platforms more broadly.

Data we collect

None. Specifically:

No personal data
No analytics or telemetry
No account or sign-in
No data sent to any remote server, ours or anyone else's
No cookies set by the extension
No advertising identifiers

What the extension looks at locally

To detect tracking tags, Tag Inspector inspects the active webpage. Everything happens inside your browser and stays on your device.

The DOM of the active tab — to scan for <script>, <img>, and <iframe> elements that match known tracking patterns.
Outbound network requests from the active tab — via the chrome.webRequest API, to match request URLs against known tracking endpoints. The extension is read-only and does not modify, block, or redirect any request.
Window globals on the active tab — via an injected page-context script, to read tracking-library globals such as fbq, gtag, and dataLayer.

Local storage

The extension uses chrome.storage.session to keep detection results for the current browser session, so the popup and side panel can show them as you move between pages. Session storage clears automatically when you close the browser. The extension does not use chrome.storage.local, chrome.storage.sync, IndexedDB, cookies, or any other persistence layer.

Permissions and why each is needed

activeTab — to read the page you're on when you click the extension icon.
scripting — to inject the page-context detection script into the active tab.
webRequest — to observe outbound network requests for tracking-endpoint matching (read-only).
storage — to keep session-scoped detection state.
sidePanel — to display the extension's side-panel UI.
Host permissions (<all_urls>) — tracking tags can appear on any site, so the extension needs access to all of them.

Third-party services

Tag Inspector uses no third-party services, APIs, SDKs, analytics, or remote configuration.

The extension does detect tags belonging to third parties (Meta, Google, LinkedIn, and so on) on the pages you visit. Those tags are placed by the website owner, not by Tag Inspector. The extension does not communicate with any third party; it only notes that their tags are present.

Children's privacy

We do not knowingly collect data from anyone, including children under 13.

Changes to this policy

If we update this policy, we'll post the changes here with a new date.

Contact

If you have questions about this privacy policy, please open an issue on our GitHub repository or write to nuvix.studio.