Anti-detection & Blocking

Browser-act gives agents a practical escalation path for sites that block basic fetchers or standard browser automation.

Three-layer strategy

Layer	Purpose	Key capabilities
Environment	Prevent challenges from appearing	stealth fingerprints, TLS rotation, proxy switching, privacy mode
Execution	Solve challenges after they appear	`solve-captcha`, `stealth-extract`
Human	Resolve cases automation cannot handle	`remote-assist`

Environment layer

The stealth browser is designed to look like a normal browser session instead of a script.

Capability	What it does
Fingerprint masking	Keeps Canvas, WebGL, fonts, plugins, and related signals consistent
Navigator normalization	Normalizes `webdriver`, `chrome.runtime`, plugin arrays, and related browser properties
TLS signature rotation	Matches realistic browser TLS signatures
Headless concealment	Keeps headless mode from exposing common automation signals
Proxy system	Supports hosted dynamic proxies or your own static proxy
Privacy mode	Starts each session with a fresh fingerprint and empty profile

Dynamic proxy

browser-act browser create \
  --type stealth \
  --name "jp-research" \
  --desc "Research browser using Japan dynamic proxy" \
  --dynamic-proxy JP

List available regions:

browser-act browser regions

Custom proxy

browser-act browser create \
  --type stealth \
  --name "custom-proxy" \
  --desc "Stealth browser with a fixed custom proxy" \
  --custom-proxy socks5://user:pass@host:port

Custom proxies support HTTP and SOCKS5. You own the proxy quality, identity, and rotation strategy.

Proxy option	Best for	Operational note
Dynamic proxy	Regional rotation and one-off collection	Browser-act rotates hosted IPs by region
Custom proxy	Stable identity and bring-your-own infrastructure	You manage proxy quality and reputation

Privacy mode

Use privacy mode when each session should start clean:

browser-act browser create \
  --type stealth \
  --name "ephemeral" \
  --desc "One-time collection jobs" \
  --private true

[!TIP] Use privacy mode for one-off scraping, avoiding fingerprint buildup, and separating account identities. The trade-off is that login state is not preserved.

Execution layer

`stealth-extract`

Use stealth-extract when the task is read-only:

browser-act stealth-extract https://example.com

It opens a stealth browser, renders the page, returns Markdown or HTML, and closes the browser.

# Return HTML
browser-act stealth-extract https://example.com --content-type html

# Use a regional dynamic proxy
browser-act stealth-extract https://example.com --dynamic-proxy US

# Use a custom proxy
browser-act stealth-extract https://example.com --custom-proxy socks5://user:pass@host:port

# Save the result
browser-act stealth-extract https://example.com --output ./result.md

Use stealth-extract for reading. Use a browser session when you need interaction.

`solve-captcha`

Use solve-captcha when a session reaches a supported CAPTCHA challenge:

browser-act --session s1 solve-captcha

A successful result returns solved=True.

Escalation flow

Human layer

When automation cannot move forward, remote-assist creates a live URL. A human can open the link on any device, complete the challenge, and let the agent continue in the same session. See Remote Assist.

Recommended escalation

Start with chrome or chrome-direct for ordinary logged-in work.
Move to stealth with a proxy when blocking appears.
Use solve-captcha if a supported CAPTCHA appears.
Use remote-assist when human judgment, 2FA, hardware tokens, or unsupported challenges are required.

Compared with basic tools

Capability	curl / WebFetch	Standard Puppeteer / Playwright	Browser-act
JavaScript rendering	No	Yes	Yes
Anti-bot handling	No	Limited	Yes
CAPTCHA solving	No	No	Yes, when supported
Human takeover	No	Manual setup required	Built in with `remote-assist`
Stealth headless	Not applicable	Often detectable	Supported

Learn more

Better Headless Browser

Run silently while keeping stealth and handoff available.

Browser Modes

Choose the right browser identity for the job.

Skill Forge

Turn site-specific knowledge into a reusable skill.

Get started

Capabilities

Skill Forge

Integration & reference

Anti-detection & Blocking

Three-layer strategy

Environment layer

Dynamic proxy

Custom proxy

Privacy mode

Execution layer

`stealth-extract`

`solve-captcha`

Escalation flow

Human layer

Recommended escalation

Compared with basic tools

Learn more

Better Headless Browser

Browser Modes

Skill Forge

​Three-layer strategy

​Environment layer

​Dynamic proxy

​Custom proxy

​Privacy mode

​Execution layer

​stealth-extract

​solve-captcha

​Escalation flow

​Human layer

​Recommended escalation

​Compared with basic tools

​Learn more

Better Headless Browser

Browser Modes

Skill Forge

Three-layer strategy

Environment layer

Dynamic proxy

Custom proxy

Privacy mode

Execution layer

`stealth-extract`

`solve-captcha`

Escalation flow

Human layer

Recommended escalation

Compared with basic tools

Learn more