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The thing is that bot adapt to the detect. If they don't face any bot detection that tries to block them, then most of the bots won't even try to hide their presence. In this situation, simple tests like webdriver = true, testing the presence of window.chrome may

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already catch a significant fraction of the traffic. However, be careful since some browsers may be parsed as chrome depending on the library you use, but are not chrome. These kinds of rule may trigger false positives. But since you're not blocking anyone

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it's not too important if you have some traffic misclassified

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Antoine Vastel

@xopek59

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@AdriaanvRossum

Some mobile browsers made by phone manufacturer, some chinese forks of chrome and probably others. Some of them will have window.chrome while others won't have it. You may also catch electron apps that pretend to be chrome

12:19 PM · May 19, 2020Twitter Web App