<p>When web browsers connect to websites, they send a user agent, which identifies the browser and the rendering capabilities it possesses.
The web server can use this information to decide which version of the website to send to the browser.
<p>When web browsers connect to websites, they send a user agent, which identifies the browser and the rendering capabilities it possesses.
The web server can use this information to decide which version of the website to send to the browser.