Is your automated browser detectable?

200+ browser signals. 0-100 stealth score. Instant results, no signup required.

Test your browser free Start monitoring

stealthcheck.io/dashboard

Everything you need to stay undetected.

Track stealth scores over time and get alerted when something breaks.

Browser profiles

Monitor all your automated browsers from one dashboard with trend indicators.

Detailed diagnostics

Every issue includes severity, category, context, and a suggestion to resolve it.

What we detect

200+ signals across 9 detection layers, from low-level browser APIs to network-level patterns.

Automation Artifacts

navigator.webdriver, CDP runtime traces, HeadlessChrome UA, empty plugins, software WebGL renderers.

Consistency Checks

Languages vs Accept-Language, User-Agent vs userAgentData, platform vs UA, HTTP header order.

Fingerprint Analysis

Prototype tampering, getter overrides, function toString checks, canvas coherence.

HTTP-Level Signals

Header order fingerprinting, missing Sec-CH-UA headers, Accept-Encoding anomalies.

Stealth Library Detection

Patterns from puppeteer-extra-stealth, undetected-chromedriver, Playwright stealth, and more.

Version Fingerprinting

Database-driven feature detection validates claimed browser version against real API support.

Simple pricing, for everyone.

Start with a free test. Upgrade when you need monitoring.

Pro

Ongoing monitoring with full diagnostics and alerts.

$29/mo
+ applicable tax

10 browser profiles
1,500 checks/month
90-day history
Full issue details + context
Email score alerts
REST API access
Webhook notifications
14-day free trial

Start free trial

Business

For teams with many browsers and CI integration.

$79/mo
+ applicable tax

Unlimited browser profiles
10,000 checks/month
90-day history
Full issue details + context
Email score alerts
REST API access
Webhook notifications
14-day free trial

Start free trial

Find out in 5 seconds.

We test against puppeteer-extra-stealth, undetected-chromedriver, Playwright stealth, and more. No signup, no cost.

Run the free test

Frequently asked questions

Can't find what you're looking for? Email us and we'll get back to you.

We analyze 200+ browser signals including automation artifacts (navigator.webdriver, CDP traces), fingerprint consistency, HTTP header patterns, and stealth library evasions. Each signal is scored across 9 detection layers.