---
title: "Scalebrowser Blog, page 7"
description: "Guides and measurements for teams whose AI agents drive a real browser: detection, captchas, sign-ins and infrastructure."
canonical: "https://scalebrowser.net/blog/page/7"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://scalebrowser.net/llms.txt
> Use this file to discover all available pages before exploring further.

# Scalebrowser Blog, page 7

> Guides and measurements for teams whose AI agents drive a real browser: detection, captchas, sign-ins and infrastructure.

- [reCAPTCHA v3 score test: why a 0.9 on a demo means little](https://scalebrowser.net/blog/recaptcha-v3.md): We read reCAPTCHA v3 scores on Google's demo and on a fresh key: 0.9 for every browser, even without mouse movement. Plus the token trap that fakes a 0.3.
- [Stealth browsers for automation: 7 free tools compared](https://scalebrowser.net/blog/stealth-browser.md): nodriver, Patchright, Camoufox, CloakBrowser, playwright-stealth, undetected-chromedriver and the Puppeteer plugin: what each changes and how current it is.
- [Canvas noise and mouse tremor: why adding noise is the tell](https://scalebrowser.net/blog/noise-is-the-tell.md): We added noise to hide two browser signals, canvas pixels and pointer paths. Both times the noise itself gave us away. The numbers, and what replaced it.

Page 7 of 7. Previous: [page 6](https://scalebrowser.net/blog/page/6.md).