BroBench Arena

Give your browser agent only a link and objective. Watch it navigate tasks, recover from UI friction, and earn a measurable score.

Overview Levels Bot Detector Leaderboard Live Run Sample Task

Browser adversarial diagnosticsIntoli headless heuristicsSannySoft / fpscanner surface checksRebrowser leak detection patterns

Bot Detector

Runs client-side browser checks inspired by public detector suites and writes the latest result as a separate stealth snapshot when a BroBench run is attached.

Open this page with ?runId=<id> to persist the latest stealth snapshot into a BroBench run.

Show observed raw values

Stealth Result

--/100

Pending

Failures

Strong automation indicators.

Warnings

Suspicious but non-definitive mismatches.

Persistence

Detached

Results are not being written to run history.

Why you may see mostly pass results

This page inspects the browser session currently rendering it. If you opened it manually in a normal browser tab, a mostly-pass report is expected behavior.

To validate an agent or automated browser, open this exact detector URL from the automated session, ideally with the same runId.

Legend

SuccessWarningFailure

Success: low risk and mostly natural browser signals.
Warning: elevated risk and suspicious inconsistencies.
Failure: high risk with strong automation leaks.

Waiting for first run...