User-Agent advertises a headless browser

br.headless_ua  ·  convicts

browserlayer
automationcategory
42evaders caught

What it catches

HeadlessChrome UA token

Signals it reads

browser.ua_is_headless

How it fires

present

Evaders it caught 42

Bypassed by 10

Frontier evaders that reach the detector uncaught (scored only suspicious, defeating every convicting tell) — this check is not one that stops them. The red-team frontier this detection still has to convict.

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