Use Agents for Web Sides

When you visit a web side, your browser sends information to the webs over. So what useagon is use for is to inform the webs of what a browser yo. A, why is this useful for web sides? Insted because, a, how safari renders a websi and hawcrome or ie renders a web side. If they know that there are such stuff that might get broken, once they identify the browser using the user agent, it will load the wapsie according to wish broser you're using.