Last updated: April 2026
SEO Checker is a Chrome extension that analyzes web pages for SEO issues. All checks run locally in your browser against the current page's DOM.
SEO Checker does not collect, transmit, or store any personal data. Specifically:
No analytics or tracking scripts are included. No user data is sent to any server. No browsing history is recorded. No cookies are read or written. No form data, passwords, or page content is captured.
The extension stores SEO check results in Chrome's local storage (chrome.storage.local) on your device only. This includes: the current page URL (truncated), check results (severity and detail), and a timestamp. This data never leaves your browser and is overwritten each time you visit a new page.
If you choose to use the Search Console feature, the extension requests read-only access to your Google Search Console data via OAuth. This uses Google's official Chrome Identity API. The extension only reads search performance data (clicks, impressions, keywords) and URL inspection status for the page you are currently viewing. No data is stored beyond the current session. Your Google access token is managed by Chrome and is not accessible to the extension's code directly.
If you grant optional host permissions, the extension sends HEAD requests to links found on the current page to check their HTTP status. These requests are made directly from your browser with no cookies or credentials attached. No third-party server is involved.
storage: Save check results locally on your device.
tabs: Read the active tab's URL to display it in the popup and update the badge.
identity: Authenticate with Google for optional Search Console access.
optional host permissions: Only requested if you click "Allow HTTP link checks". Used for HEAD requests to verify link status.
No data is shared with third parties. The only external network requests are: Google Search Console API calls (only when you opt in and authenticate), and optional HTTP HEAD requests for link checking.
If this policy changes, the updated version will be posted at this URL with a new date.
For questions about this policy, contact: seochecker.dev@gmail.com