Google’s CAPTCHA system is designed to prevent automated programs from accessing websites. It requires users to confirm that they are human by solving a simple puzzle or completing a challenge.
The reference ID provided is likely used to verify the user’s identity and ensure that the interaction is legitimate. When a user enters the correct answer, it indicates that they have successfully completed the CAPTCHA test and can proceed with their desired action on the website.
This technology helps protect websites from spam and automated scripts, providing a safer experience for users. By confirming human identity through CAPTCHA, developers can prevent malicious activities and maintain a secure online environment.
Source: https://www.houstonchronicle.com/health/article/texas-measles-outbreak-update-20299101.php