Earlier quoted context omitted.
I always found the concept of a whole website, domain name, etc dedicated to a wedding to feel a little... heavy. I understand it's a big occasion. It just feels like a lot for a single event and domain that will become irrelevant after the event is over.
The project which I have linked here won't cost you a dime to set up. It will be hosted on github.com for free. My site is hosted on github too. No servers needed. Github also provides you with a default domain which you can use (and it recently started supporting https as well). You only pay around $10 if you need your own custom domain.
I know they're very common.