Is Metadata Viewer safe?

Clean risk

Metadata Viewer sends the active tab URL and page meta tags to api.koelker.dev when its DevTools panel opens.

When you open its DevTools panel, the extension asks its content script on the active page for window.location.href and the page's meta tag values. It then POSTs those meta tag names and content values to api.koelker.dev, with the page URL base64-encoded into the request path.

0Risk

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 1.0.0. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Store data in your browser

    storage

Where it sends data

Destinations our analysis observed Metadata Viewer contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • api.koelker.dev

    Metadata Viewer sends data to api.koelker.dev. No other extension we have analysed sends data here.

Updated 30 September 2026daimnfdnllelmegllinlifhmlomcfgfo