Google's new reRECAPTCHA automatically tells you're not a bot
 

Over the years, Google has utilised a number of methods to distinguish between human and bots on the web. Its take on the CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) test, known as reCAPTCHA, has required you...

https://www.engadget.com/2017/03/10/...ble-recaptcha/