Does YOUR website will work with and without the www prefix?

"I don't know. Why does it matter" I hear you say.

Well, here's why it is important.

Many people tend to leave off the www prefix when entering a website address into a browser.

It's a bit like your appendix. It used to be useful, but has outlived its function. After all, everyone knows that .com means a website. You don't need the WWW as an additional identifier. And many people are lazy ...