Question 1

What does the bot detection test measure?

Accepted Answer

TLS ClientHello (JA3/JA4), the HTTP/2 SETTINGS and pseudo-header order and the request header order are read by AlterLab's own TLS terminator, not a CDN. The page adds JavaScript checks such as navigator.webdriver, CDP leaks, client hints, WebGL, canvas and audio stability.

Question 2

How is each signal judged?

Accepted Answer

Each signal is compared with the values a stock, headed Chrome, Firefox or Safari reports for the browser your User-Agent claims, and marked consistent or inconsistent.

Question 3

What is stored if I share my result?

Accepted Answer

Only the fingerprint fields shown on the page. Your IP address and cookies are never stored, and a shared result expires after 30 days.

Bot Detection Test

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