captcha simulator Fundamentals Explained
知乎,让每一次点击都充满意义 —— 欢迎来到知乎,发现问题背后的世界。Innovative captcha video games can mitigate the annoyance users generally truly feel when confronted which has a captcha test, decreasing the probability of these abandoning the process at hand.In 2009, Google acquired reCAPTCHA and started using it