A vanity URL is a custom address for your Facebook business page, such as http://facebook.com/heywdyt.
Having a vanity URL on Facebook makes it easier for your customers to find you and your awesome content. You can set your vanity URL by setting your page username.
Here’s how to set up your Facebook Business username in five easy steps:
Go to your business page
Navigate to the ‘About’ section
Hit the ‘ Create Page @username’ link
Next, fill in what you’d like your page username to be – this is usually the name of your business. You can only set this once, so take a moment to think about it.
You’re done! You now have a short and simple Facebook Page URL you can feature on promotional materials and tell your customers.