Does your browser look automated?

Bot detection doesn't ask what your browser claims to be. It checks whether the claims agree with each other. This page runs the same checks, in your browser.

What does it check?

• Automation flags: the WebDriver flag, headless markers, and the variables browser drivers leave behind.
• Consistency: whether a web worker, a fresh iframe and the request headers tell the same story as the page.
• Patches: browser getters a stealth plugin replaced with JavaScript.
• Hardware: a software GPU, a server-sized CPU, and a window that doesn't exist.

A real browser can trip one check. DevTools open, a privacy extension, or a remote desktop all look a little odd. Several at once is what gets a scraper blocked.

Where does this come from?

I ran 7 stealth browsers against 6 detection pages, on a laptop and then on a 40-core server, where 6 of 7 went from clean to flagged. These are the leaks that did it.

Checking your connection instead? Try Is your connection proxied?

Your results never leave this page: nothing about the check is stored or logged. The site counts page views with Google Analytics. Visitors in the EU, UK and Switzerland are asked first, and browser privacy signals (Global Privacy Control, Do Not Track) switch it off.