Persistent uniform resource locator

Well kiddo, a Persistent Uniform Resource Locator or PURL is like a teacher that helps you find your favorite book in the library. You know how in the library, every book has its own address, right? And you usually have to remember that address to find that book again. But what if you forget the address of your favorite book? That's where the teacher comes in. They help you remember where the book is even if the address changes.

So, a PURL is kind of like that teacher – it helps you find a specific webpage even if its web address (also called a URL) changes. You can think of it as a nickname for a web page. Instead of remembering a long and hard-to-remember web address like "http://www.example.com/2021/07/23/how-to-cook-a-pizza," you can use a PURL like "http://www.example.com/pizza" to get to the same page.

But the best part is that the PURL will always lead you to the same page, no matter how many times the web address behind it changes. It's like a magical shortcut that never gets lost, just like how the teacher always knows where your favorite book is kept in the library.

So, that's what a PURL is – a shortcut that helps you find your way to a specific webpage, even if the regular address changes. Pretty cool, huh?