Google Analytics 4 checker
Google Analytics 4 is the most common web analytics tool. It reports traffic, events, and conversions for free. Enter any website below to check whether it uses Google Analytics 4. The check is free and needs no signup.
Enter a website address and press Scan.
Detection reads the page HTML, response headers and cookies. Tools that load later or run only on the server can be missed.
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How we detect Google Analytics 4
We look for a googletagmanager.com gtag.js loader with a G- measurement id, a gtag config call, the older google-analytics.com scripts, or the _ga cookie.
Detection reads what the page sends to a visitor. A site can hide Google Analytics 4, or use it only on the server, and then we can't see it.