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How to detect Selenium bots?
Headless Chrome bots controlled by Selenium remain a staple in the bot developer’s toolkit in 2025. While newer frameworks
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Detecting Gmail-based fake accounts: what Emailnator teaches us
Most disposable email services are easy to detect. They use obvious domains like tempmail.xyz or tmxttvmail.com, which are
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Bought sneaker proxies by mistake, did science with them anyway
The other day, I bought sneaker proxies by mistake. I know, I know, how do you accidentally buy sneaker proxies?
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Fraudulent email domain tracker: June 2025
This is the third edition of our monthly tracker highlighting email domains linked to fraudulent activity. Just like in Mays’
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How bot detection misfires on non-mainstream browsers and privacy tools
Every time there's a Hacker News thread about bots, bot detection, or CAPTCHAs, a familiar complaint shows up:
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From Puppeteer stealth to Nodriver: How anti-detect frameworks evolved to evade bot detection
Browser automation tools like Puppeteer, Playwright, and Selenium are widely used for testing, scraping, and other automation tasks. However, because
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What TikTok’s virtual machine tells us about modern bot defenses
A recent Hacker News post looked at the reverse engineering of TikTok’s JavaScript virtual machine (VM). Many commenters assumed
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Fraudulent email domain tracker: May 2025
This is the second edition of our monthly tracker highlighting email domains linked to fraudulent activity. Just like in April’
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What a Binance CAPTCHA solver tells us about today’s bot threats
In this post, we analyze an open-source CAPTCHA solver designed to bypass a custom challenge deployed on Binance, one of
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Detecting Hidemium: Fingerprinting inconsistencies in anti-detect browsers
This is the fourth article in our series on anti-detect browsers. In the previous post, we explained how to detect
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Detect and crash Chromium bots with one weird trick (bots hate it!)
Disclaimer: If you're here for the holy grail of bot detection, this may not be it, unless your
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Fraudulent email domain tracker: April 2025
This is the first release in a new Castle series highlighting email domains associated with fraudulent activity. Our goal is