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How can I detect JavaScript traps in websites that prevent scraping?
Use a headless browser to analyze how the JavaScript is executed and if it detects bots.
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4 Replies
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Some people run scripts with Puppeteer’s DevTools API, which helps identify elements loaded only via JavaScript.
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Check for WebGL, canvas fingerprinting, or hidden elements in the HTML that might be used for bot detection.
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I disable JavaScript initially to see if the content is still accessible. If it isn’t, then a headless browser is likely needed.
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Tools like Ghostery can help reveal trackers that could be part of JavaScript traps.
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