WURFL

WURFL stands for "Wireless Universal Resource FiLe". It is kind of like a really big library where we find out what kind of phone or device someone is using when they visit a website.

Imagine you are visiting a friend's house and they ask you what kind of toy you want to play with. They might have a toy box with lots of different toys inside, and they ask you which one you want to play with. In the same way, when someone visits a website, the website might have lots of different tools or features that work differently on different devices such as smartphones, tablets, or laptops.

So, to make sure the website can work properly on all these different devices, WURFL helps the website understand what kind of device someone is using. It does this by looking at different things like the size of the screen or the type of browser or operating system being used.

In short, WURFL is like a really smart helper that helps websites know what kind of device you're using, so they can give you the best experience possible.