Robots exclusion standard

Robots exclusion standard is like a set of rules that tell robots (or robots-like things) what they can and cannot do on a website. It's kind of like grown-ups telling kids not to go in certain rooms or touch certain things.

When a robot comes to a website, it looks around to figure out what's there. But sometimes, the website owners don't want the robot to see everything. For example, they might not want the robot to see pages that are still being worked on or private information that's not meant for everyone to see.

So, the website owners use a special file called robots.txt to tell the robot what it can and cannot look at. It's like a note that tells the robot "Hey, don't look at this door, it's locked" or "Don't touch this toy, it's not for you." This makes sure that the website owners have control over what parts of their website the robots can see and use.