In the cat-and-mouse game of web scraping and automation, developers often find themselves hitting "Access Denied" walls. Modern anti-bot systems from vendors like Cloudflare
Queries the Permissions API and checks installed navigator plugins.
| Test | URL | Purpose | |------|-----|---------| | Recaptcha Score | antcpt.com | Evaluates your reCAPTCHA v3 score | | AreYouHeadless | antoinevastel.com | Tests for headless browser-specific fingerprints | | Datadome | datadome.co | Simulates checks performed by DataDome's bot protection | | PixelScan | pixelscan.net | Analyzes browser characteristics for automation signs |
The landscape of bot detection is constantly evolving. As one developer pointed out in a GitHub feature request, "https://bot.sannysoft.com/ is a bit old, isn't it?" The user went on to explain that they were actively discovering new ways to detect Puppeteer and Playwright, suggesting that the detection tests themselves need regular updates to remain relevant. bot.sannysoft
Enter bot.sannysoft.com . While not a piece of software itself, refers to a legendary resource in the automation community: The Selenium Grid / WebDriver Testing Page hosted by SannySoft . This page (often navigated to via bot.sannysoft.com ) serves as the gold-standard benchmark for verifying that your headless or UI-based browser automation setup is working correctly.
It analyzes your browser's environment to see if it can distinguish between a real human user and an automated bot. When you visit the site, it runs a series of tests to check for "leaks"—technical signs that indicate automation tools like , Selenium , or Playwright are in use. Key Detection Tests
user wants a long article about "bot.sannysoft". I need to research what this is. Likely it's a chatbot or automation tool. I should search for it. search results show that bot.sannysoft.com is a website used for testing bot detection. It's referenced in several GitHub issues and packages related to stealth techniques for Puppeteer and Playwright. I need to open the website to understand what it is. page appears to be a test suite for bot detection. It shows various tests and results. The user wants a long article. I need to provide an in-depth guide. I should search for more information about bot.sannysoft, its purpose, how to use it, and related tools. search results provide a lot of information. I can structure the article with an introduction, an explanation of what bot.sannysoft.com is, the key detection tests it performs, why these tests matter for web automation, and a comprehensive guide to bypassing them with stealth techniques. I'll need to cover various tools like Puppeteer, Playwright, Selenium, and stealth plugins. I'll also include a section on limitations and alternatives. Now I'll write the article.ating the tricky world of web automation often feels like an arms race: developers build bots, and websites build defenses. In this landscape, has emerged as the essential testing ground—a specialized tool that helps you see your automation exactly as an anti-bot system would. In the cat-and-mouse game of web scraping and
: If a scraper is being blocked by anti-bot services like Cloudflare or Akamai, Sannysoft helps identify which specific browser property is giving the bot away.
The testing floor of Sannysoft Industries was a pristine white grid, interrupted only by the hum of server racks and the soft, rhythmic clicking of a single keyboard. The human technicians had left three hours ago, their coffee still warm in a mug that read “I Test for a Living.”
One of the more niche but fascinating data points Sannysoft provides is response time and potential errors. It gives you a raw look at headers and status codes. It’s a quick way to check if your server is throttling Google’s requests or if you are serving different status codes (like a 404) to bots than you are to users. As one developer pointed out in a GitHub
Headless browsers often inadvertently identify themselves through their user agent string. For example, a headless Chrome may contain the substring "HeadlessChrome" right in its identity. If bot.sannysoft.com detects this, it will flag the test as a failure, indicating that even a simple header check can identify your script.
The most critical check is the navigator.webdriver property. When a browser is launched via Selenium, Puppeteer, or Playwright in standard mode, this JavaScript property is automatically set to true . For anti-bot systems, this is a definitive, unambiguous signal that the visitor is automated.
Your browser has not hidden the automation flag. Fix: Add excludeSwitches and disable-blink-features arguments.
Maintained by developer Alexey Sannysoft, this tool is the gold standard for web scrapers, automation engineers, and cybersecurity researchers to test if their automated browsers can successfully mimic real human users. 🛡️ Why bot.sannysoft Exists
While bot.sannysoft.com is a great starting point, it has limitations.